Finding the Fourth Proportional to 839,065.48, 1,259,695.86 and 498,131.32

Step by Step Solution

1. Step 1: Write the proportion equation
   839,065.48 : 1,259,695.86 = 498,131.32 : x
2. Step 2: Convert to fraction form
   839,065.48/1,259,695.86 = 498,131.32/x
3. Step 3: Cross multiply
   839,065.48x = 1,259,695.86 × 498,131.32
4. Step 4: Simplify right side
   839,065.48x = 627,493,961,540.34
5. Step 5: Solve for x
   x = 627,493,961,540.34/839,065.48
6. Step 6: Final answer
   x = 747,848.62