Finding the Fourth Proportional to 656,851.82, 906,477.88 and 381,188.33

Step by Step Solution

1. Step 1: Write the proportion equation
   656,851.82 : 906,477.88 = 381,188.33 : x
2. Step 2: Convert to fraction form
   656,851.82/906,477.88 = 381,188.33/x
3. Step 3: Cross multiply
   656,851.82x = 906,477.88 × 381,188.33
4. Step 4: Simplify right side
   656,851.82x = 345,538,793,731.15
5. Step 5: Solve for x
   x = 345,538,793,731.15/656,851.82
6. Step 6: Final answer
   x = 526,052.88