An investment of $31,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned8% interest, the second6%, and the third9%. Total interest from the investments was $2370. The interest from the first investment was 3 times the interest from the second. Find the amounts of the three parts of the investment.

The first part of the investment was $

.

The second part of the investment was $

.

The third part of the investment was $

.