Finding the Fourth Proportional to 2,517.08, 3,472.50 and 1,521.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.08 : 3,472.50 = 1,521.78 : x
2. Step 2: Convert to fraction form
   2,517.08/3,472.50 = 1,521.78/x
3. Step 3: Cross multiply
   2,517.08x = 3,472.50 × 1,521.78
4. Step 4: Simplify right side
   2,517.08x = 5,284,381.05
5. Step 5: Solve for x
   x = 5,284,381.05/2,517.08
6. Step 6: Final answer
   x = 2,099.41