Finding the Fourth Proportional to 809,984.16, 1,117,755.72 and 447,401.52

Step by Step Solution

1. Step 1: Write the proportion equation
   809,984.16 : 1,117,755.72 = 447,401.52 : x
2. Step 2: Convert to fraction form
   809,984.16/1,117,755.72 = 447,401.52/x
3. Step 3: Cross multiply
   809,984.16x = 1,117,755.72 × 447,401.52
4. Step 4: Simplify right side
   809,984.16x = 500,085,608,116.69
5. Step 5: Solve for x
   x = 500,085,608,116.69/809,984.16
6. Step 6: Final answer
   x = 617,401.71