(Engineering economics)

What is the amount of five equal annual deposits that can provide five annual withdrawals, where a first withdrawal of $1500 is made at the end of year six and subsequent withdrawals increase at $100 over the previous year's, in the interest rate of 10% compounded annually? Enter you answer as follow: "123456.78". Do not use "$", or ",".

Hint:

- Draw a CFD to ensure that you understand the problem properly.

- Consider solving this problem in two parts.

- Remember that the cash flow for year 1 must be zero for linear gradient.