Finding the Fourth Proportional to 1,156,311.88, 1,735,151.25 and 644,404.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,311.88 : 1,735,151.25 = 644,404.43 : x
2. Step 2: Convert to fraction form
   1,156,311.88/1,735,151.25 = 644,404.43/x
3. Step 3: Cross multiply
   1,156,311.88x = 1,735,151.25 × 644,404.43
4. Step 4: Simplify right side
   1,156,311.88x = 1,118,139,152,220.04
5. Step 5: Solve for x
   x = 1,118,139,152,220.04/1,156,311.88
6. Step 6: Final answer
   x = 966,987.52