Finding the Fourth Proportional to 2,689.32, 3,711.27 and 1,510.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.32 : 3,711.27 = 1,510.40 : x
2. Step 2: Convert to fraction form
   2,689.32/3,711.27 = 1,510.40/x
3. Step 3: Cross multiply
   2,689.32x = 3,711.27 × 1,510.40
4. Step 4: Simplify right side
   2,689.32x = 5,605,502.21
5. Step 5: Solve for x
   x = 5,605,502.21/2,689.32
6. Step 6: Final answer
   x = 2,084.36