Finding the Fourth Proportional to 839,222.74, 1,259,931.52 and 498,288.48

Step by Step Solution

1. Step 1: Write the proportion equation
   839,222.74 : 1,259,931.52 = 498,288.48 : x
2. Step 2: Convert to fraction form
   839,222.74/1,259,931.52 = 498,288.48/x
3. Step 3: Cross multiply
   839,222.74x = 1,259,931.52 × 498,288.48
4. Step 4: Simplify right side
   839,222.74x = 627,809,362,004.89
5. Step 5: Solve for x
   x = 627,809,362,004.89/839,222.74
6. Step 6: Final answer
   x = 748,084.31