Finding the Fourth Proportional to 773,083.31, 1,066,818.83 and 428,915.58

Step by Step Solution

1. Step 1: Write the proportion equation
   773,083.31 : 1,066,818.83 = 428,915.58 : x
2. Step 2: Convert to fraction form
   773,083.31/1,066,818.83 = 428,915.58/x
3. Step 3: Cross multiply
   773,083.31x = 1,066,818.83 × 428,915.58
4. Step 4: Simplify right side
   773,083.31x = 457,575,215,285.98
5. Step 5: Solve for x
   x = 457,575,215,285.98/773,083.31
6. Step 6: Final answer
   x = 591,883.45