Steps for a man borrows $$8100.$ A payment of $$994$ is made $75$ days later. A second payment of $$523$ is paid $179$ days after the first payment. A third payment of X is due $46$ days after the second payment, after which the loan balance is $0.$ The loan is charged a simple interest rate of r $=2\%.$ What is X$,$ if the Declining Balance Method is used?