Finding the Fourth Proportional to 2,516.43, 3,472.72 and 1,397.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.43 : 3,472.72 = 1,397.35 : x
2. Step 2: Convert to fraction form
   2,516.43/3,472.72 = 1,397.35/x
3. Step 3: Cross multiply
   2,516.43x = 3,472.72 × 1,397.35
4. Step 4: Simplify right side
   2,516.43x = 4,852,605.29
5. Step 5: Solve for x
   x = 4,852,605.29/2,516.43
6. Step 6: Final answer
   x = 1,928.37