You make a deposit into your bank account today. The amount is sufficient for you to make 20 quarter-end withdrawals of 1,000 starting in 3 months. How much should you deposit today if you earn an interest rate of 8.5% p.a. compounded monthly? (Correct your answer to the nearest cent without any unit (no need to put $).Do not use "," in your answer. e.g. 20233.12)