Finding the Fourth Proportional to 2,516.58, 3,472.49 and 1,397.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.58 : 3,472.49 = 1,397.51 : x
2. Step 2: Convert to fraction form
   2,516.58/3,472.49 = 1,397.51/x
3. Step 3: Cross multiply
   2,516.58x = 3,472.49 × 1,397.51
4. Step 4: Simplify right side
   2,516.58x = 4,852,815.15
5. Step 5: Solve for x
   x = 4,852,815.15/2,516.58
6. Step 6: Final answer
   x = 1,928.34