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

1. It was his taxpayers who had to shell out as much as $1.6bn over 10 years to employees of failed companies.

2. Companies in many countries routinely engage in such activities which means that the employees are left with unpaid entitlements.

3. Deliberate and systematic liquidation of a company to avoid liabilities and then restarting the business is called phoenixing.

4. The Australian Minister for Revenue and Services discovered in an audit that phoenixing had cost the Australian economy between 2.9bn and 2.9bn and 5.1bn last year.