Finding the Fourth Proportional to 911,552.34, 1,257,877.59 and 503,649.72

Step by Step Solution

1. Step 1: Write the proportion equation
   911,552.34 : 1,257,877.59 = 503,649.72 : x
2. Step 2: Convert to fraction form
   911,552.34/1,257,877.59 = 503,649.72/x
3. Step 3: Cross multiply
   911,552.34x = 1,257,877.59 × 503,649.72
4. Step 4: Simplify right side
   911,552.34x = 633,529,695,997.78
5. Step 5: Solve for x
   x = 633,529,695,997.78/911,552.34
6. Step 6: Final answer
   x = 695,000.90