Finding the Fourth Proportional to 998,171.72, 1,377,617.46 and 635,479.72

Step by Step Solution

1. Step 1: Write the proportion equation
   998,171.72 : 1,377,617.46 = 635,479.72 : x
2. Step 2: Convert to fraction form
   998,171.72/1,377,617.46 = 635,479.72/x
3. Step 3: Cross multiply
   998,171.72x = 1,377,617.46 × 635,479.72
4. Step 4: Simplify right side
   998,171.72x = 875,447,957,747.91
5. Step 5: Solve for x
   x = 875,447,957,747.91/998,171.72
6. Step 6: Final answer
   x = 877,051.45