Jane is interested in buying a new condo and has saved $10,000 for the down payment. Her plans call for making 4 additional quarterly deposits into an investment account over the next 12 months. Jane wants to make the purchase 15 months from today and wants to have $20,000 saved up for the down payment. What is the amount of each of the 4 additional payments she must make for her plan to work out. Assume Jane can earn 10% annual return in her investment account.

Design an amortization schedule proving the answer you computed in a. is correct.