Suppose that the Sales in December 2019 were 5,640. The sales are expected to grow by 11% in January 2020, by 14% in February 2020, and by 7% in March 2020. After that, the sales are expected to grow by 10%.

The company's cash collection is as follows: 17% is collected in the same month, 45% is collected in the next month, and the remainder in the following month.

What is the cash collection for September, 2020?

Enter your answer rounded off to two decimal points. Do not enter $ or comma in the answer box.