A father wants to save in advance for his 8-year-old son's university expenses. The son will enter the university 10 years from now. An annual amount of $30,000 in today's dollars (constant dollars) will be required to support the university for 4 years. Assume that these university payments will be made at the beginning of the semester year. The future general interest rate on the savings account will be 9% per annumn during this period. What is the equal amount the father must save at the end of each year until his son goes to university