Finding the Fourth Proportional to 2,575.38, 3,862.10 and 931.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.38 : 3,862.10 = 931.52 : x
2. Step 2: Convert to fraction form
   2,575.38/3,862.10 = 931.52/x
3. Step 3: Cross multiply
   2,575.38x = 3,862.10 × 931.52
4. Step 4: Simplify right side
   2,575.38x = 3,597,623.39
5. Step 5: Solve for x
   x = 3,597,623.39/2,575.38
6. Step 6: Final answer
   x = 1,396.93