Carow Industries has just started to deposit $450 at the end of each month into its employees' retirement fund (i.e., the first deposit will take place one month from now). These deposits will continue for each em- ployee until they retire. Phillip Powell, an employee at Carow Industries is planning to retire in 15 years. During the retirement phase of his life, Phillip would like to withdraw $9,000 per month (at the end of each month) from his re- tirement account for the following 25 years. If Phillip currently has $105,000 invested and can earn 4.8% APR with monthly compounding, on all money invested (including that from Carow), how much will he need to put into the account at the end of each month for the next 15 years in order to have enough money to retire and then make the withdrawals as planned? (Just to be clear, the same interest rate applies across the entire 40-year horizon.)