Jessica wants to accumulate $12,000 by the end of 4 years in a special bank account, which she had opened for this purpose. To achieve this goal, Jessica plans to deposit a fixed sum of money into the account at the end of the month over the 4-year period. If the bank pays interest at the rate of 6% per year compounded monthly, how much does she have to deposit each month into her account? (Round your answer to the nearest cent.)