Rohan deposited Rs. ‘Y’ in a bank offering compound interest of 10% p.a. compounded annually. After 3 years, he invested the amount received from the bank in scheme ‘C’ and ‘D’ in the ratio of 7:3 respectively. Scheme ‘D’ offers compound interest of 18% p.a. compounded annually while scheme ‘C’ offers simple interest of 12% p.a. If total interest received by him from schemes C and D together at the end of 2 years is Rs. 1584, then find the value of ‘Y’.(Calculate approximate value)