Finding the Fourth Proportional to 998,158.72, 1,377,599.52 and 635,466.72

Step by Step Solution

1. Step 1: Write the proportion equation
   998,158.72 : 1,377,599.52 = 635,466.72 : x
2. Step 2: Convert to fraction form
   998,158.72/1,377,599.52 = 635,466.72/x
3. Step 3: Cross multiply
   998,158.72x = 1,377,599.52 × 635,466.72
4. Step 4: Simplify right side
   998,158.72x = 875,418,648,447.97
5. Step 5: Solve for x
   x = 875,418,648,447.97/998,158.72
6. Step 6: Final answer
   x = 877,033.51