Finding the Fourth Proportional to 656,083.37, 905,404.17 and 365,686.89

Step by Step Solution

1. Step 1: Write the proportion equation
   656,083.37 : 905,404.17 = 365,686.89 : x
2. Step 2: Convert to fraction form
   656,083.37/905,404.17 = 365,686.89/x
3. Step 3: Cross multiply
   656,083.37x = 905,404.17 × 365,686.89
4. Step 4: Simplify right side
   656,083.37x = 331,094,435,120.33
5. Step 5: Solve for x
   x = 331,094,435,120.33/656,083.37
6. Step 6: Final answer
   x = 504,653.00