Finance question - geometric average?

Based on a study of U.S. capital markets for the 1900-2000 period, the geometric average returns on U.S. Treasury bills, government bonds, and common stocks are 4.0%, 5.2%, and 11.7%, respectively. Suppose $1,000 was invested at the beginning of 1900 in the each of the three securities. Please calculate the value of each investment by the end of 2000.