Finding the Fourth Proportional to 2,521,128.38, 3,781,725.37 and 838,231.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521,128.38 : 3,781,725.37 = 838,231.88 : x
2. Step 2: Convert to fraction form
   2,521,128.38/3,781,725.37 = 838,231.88/x
3. Step 3: Cross multiply
   2,521,128.38x = 3,781,725.37 × 838,231.88
4. Step 4: Simplify right side
   2,521,128.38x = 3,169,962,745,534.59
5. Step 5: Solve for x
   x = 3,169,962,745,534.59/2,521,128.38
6. Step 6: Final answer
   x = 1,257,358.72