Finding the Fourth Proportional to 2,781.41, 4,172.00 and 932.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781.41 : 4,172.00 = 932.38 : x
2. Step 2: Convert to fraction form
   2,781.41/4,172.00 = 932.38/x
3. Step 3: Cross multiply
   2,781.41x = 4,172.00 × 932.38
4. Step 4: Simplify right side
   2,781.41x = 3,889,874.27
5. Step 5: Solve for x
   x = 3,889,874.27/2,781.41
6. Step 6: Final answer
   x = 1,398.53