Finding the Fourth Proportional to 656,824.72, 906,428.16 and 384,827.52

Step by Step Solution

1. Step 1: Write the proportion equation
   656,824.72 : 906,428.16 = 384,827.52 : x
2. Step 2: Convert to fraction form
   656,824.72/906,428.16 = 384,827.52/x
3. Step 3: Cross multiply
   656,824.72x = 906,428.16 × 384,827.52
4. Step 4: Simplify right side
   656,824.72x = 348,818,500,870.96
5. Step 5: Solve for x
   x = 348,818,500,870.96/656,824.72
6. Step 6: Final answer
   x = 531,067.86