The four sentences (labelled 1, 2, 3 and 4) below, when properly sequenced, would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer:

1. Various industrial sectors including retail, transit systems, enterprises, educational institutions, event organizing, finance, travel etc. have now started leveraging these beacons solutions to track and communicate with their customers.

2. A beacon fixed on to a shop wall enables the retailer to assess the proximity of the customer, and come up with a much targeted or personalized communication like offers, discounts and combos on products in each shelf.

3. Smart phones or other mobile devices can capture the beacon signals, and distance can be estimated by measuring received signal strength.

4. Beacons are tiny and inexpensive, micro-location-based technology devices that can send radio frequency signals and notify nearby Bluetooth devices of their presence and transmit information.

Question

The four sentences (labelled 1, 2, 3 and 4) below, when properly sequenced, would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer:

1. Various industrial sectors including retail, transit systems, enterprises, educational institutions, event organizing, finance, travel etc. have now started leveraging these beacons solutions to track and communicate with their customers.

2. A beacon fixed on to a shop wall enables the retailer to assess the proximity of the customer, and come up with a much targeted or personalized communication like offers, discounts and combos on products in each shelf.

3. Smart phones or other mobile devices can capture the beacon signals, and distance can be estimated by measuring received signal strength.

4. Beacons are tiny and inexpensive, micro-location-based technology devices that can send radio frequency signals and notify nearby Bluetooth devices of their presence and transmit information.

Accepted Answer

The correct sequence is **4312**, as it logically develops the explanation of beacon technology:

- **Sentence 4** introduces beacons as micro-location-based technology devices that send signals to nearby Bluetooth devices. This serves as the opening sentence by defining the concept.  
- **Sentence 3** explains how smartphones or mobile devices interact with beacons by capturing their signals and estimating distance based on signal strength. This builds on the technical explanation in Sentence 4.  
- **Sentence 1** transitions to real-world applications by stating that various industries have started using beacon solutions for tracking and communication purposes.  
- **Sentence 2** elaborates on one specific application in retail, where beacons enable personalized communication with customers based on proximity.

This sequence ensures a logical progression from introducing the technology (4), explaining its functionality (3), highlighting its adoption (1), and providing a concrete example (2).