Finding the Fourth Proportional to 856,076.31, 1,181,397.69 and 493,493.58

Step by Step Solution

1. Step 1: Write the proportion equation
   856,076.31 : 1,181,397.69 = 493,493.58 : x
2. Step 2: Convert to fraction form
   856,076.31/1,181,397.69 = 493,493.58/x
3. Step 3: Cross multiply
   856,076.31x = 1,181,397.69 × 493,493.58
4. Step 4: Simplify right side
   856,076.31x = 583,012,175,441.83
5. Step 5: Solve for x
   x = 583,012,175,441.83/856,076.31
6. Step 6: Final answer
   x = 681,028.28