Finding the Fourth Proportional to 2,516.25, 3,472.59 and 1,397.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.25 : 3,472.59 = 1,397.23 : x
2. Step 2: Convert to fraction form
   2,516.25/3,472.59 = 1,397.23/x
3. Step 3: Cross multiply
   2,516.25x = 3,472.59 × 1,397.23
4. Step 4: Simplify right side
   2,516.25x = 4,852,006.93
5. Step 5: Solve for x
   x = 4,852,006.93/2,516.25
6. Step 6: Final answer
   x = 1,928.27