Finding the Fourth Proportional to 2,689.34, 3,711.38 and 1,510.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.34 : 3,711.38 = 1,510.56 : x
2. Step 2: Convert to fraction form
   2,689.34/3,711.38 = 1,510.56/x
3. Step 3: Cross multiply
   2,689.34x = 3,711.38 × 1,510.56
4. Step 4: Simplify right side
   2,689.34x = 5,606,254.62
5. Step 5: Solve for x
   x = 5,606,254.62/2,689.34
6. Step 6: Final answer
   x = 2,084.62