Finding the Fourth Proportional to 2,689.74, 3,711.69 and 1,510.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.74 : 3,711.69 = 1,510.74 : x
2. Step 2: Convert to fraction form
   2,689.74/3,711.69 = 1,510.74/x
3. Step 3: Cross multiply
   2,689.74x = 3,711.69 × 1,510.74
4. Step 4: Simplify right side
   2,689.74x = 5,607,398.55
5. Step 5: Solve for x
   x = 5,607,398.55/2,689.74
6. Step 6: Final answer
   x = 2,084.74