Finding the Fourth Proportional to 2,516.18, 3,472.32 and 1,397.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.18 : 3,472.32 = 1,397.07 : x
2. Step 2: Convert to fraction form
   2,516.18/3,472.32 = 1,397.07/x
3. Step 3: Cross multiply
   2,516.18x = 3,472.32 × 1,397.07
4. Step 4: Simplify right side
   2,516.18x = 4,851,074.10
5. Step 5: Solve for x
   x = 4,851,074.10/2,516.18
6. Step 6: Final answer
   x = 1,927.96