Finding the Fourth Proportional to 657,085.27, 906,772.39 and 381,468.69

Step by Step Solution

1. Step 1: Write the proportion equation
   657,085.27 : 906,772.39 = 381,468.69 : x
2. Step 2: Convert to fraction form
   657,085.27/906,772.39 = 381,468.69/x
3. Step 3: Cross multiply
   657,085.27x = 906,772.39 × 381,468.69
4. Step 4: Simplify right side
   657,085.27x = 345,905,277,054.73
5. Step 5: Solve for x
   x = 345,905,277,054.73/657,085.27
6. Step 6: Final answer
   x = 526,423.73