Finding the Fourth Proportional to 880,081.57, 1,214,304.42 and 498,108.34

Step by Step Solution

1. Step 1: Write the proportion equation
   880,081.57 : 1,214,304.42 = 498,108.34 : x
2. Step 2: Convert to fraction form
   880,081.57/1,214,304.42 = 498,108.34/x
3. Step 3: Cross multiply
   880,081.57x = 1,214,304.42 × 498,108.34
4. Step 4: Simplify right side
   880,081.57x = 604,855,158,900.86
5. Step 5: Solve for x
   x = 604,855,158,900.86/880,081.57
6. Step 6: Final answer
   x = 687,271.70