Finding the Fourth Proportional to 885,701.55, 1,222,307.06 and 498,541.98

Step by Step Solution

1. Step 1: Write the proportion equation
   885,701.55 : 1,222,307.06 = 498,541.98 : x
2. Step 2: Convert to fraction form
   885,701.55/1,222,307.06 = 498,541.98/x
3. Step 3: Cross multiply
   885,701.55x = 1,222,307.06 × 498,541.98
4. Step 4: Simplify right side
   885,701.55x = 609,371,383,951.32
5. Step 5: Solve for x
   x = 609,371,383,951.32/885,701.55
6. Step 6: Final answer
   x = 688,009.84