Finding the Fourth Proportional to 2,689.20, 3,710.76 and 1,510.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.20 : 3,710.76 = 1,510.32 : x
2. Step 2: Convert to fraction form
   2,689.20/3,710.76 = 1,510.32/x
3. Step 3: Cross multiply
   2,689.20x = 3,710.76 × 1,510.32
4. Step 4: Simplify right side
   2,689.20x = 5,604,435.04
5. Step 5: Solve for x
   x = 5,604,435.04/2,689.20
6. Step 6: Final answer
   x = 2,084.05