Finding the Fourth Proportional to 2,325.72, 3,487.71 and 938.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,325.72 : 3,487.71 = 938.61 : x
2. Step 2: Convert to fraction form
   2,325.72/3,487.71 = 938.61/x
3. Step 3: Cross multiply
   2,325.72x = 3,487.71 × 938.61
4. Step 4: Simplify right side
   2,325.72x = 3,273,599.48
5. Step 5: Solve for x
   x = 3,273,599.48/2,325.72
6. Step 6: Final answer
   x = 1,407.56