Finding the Fourth Proportional to 807,280, 1,114,080.96 and 449,584

Step by Step Solution

1. Step 1: Write the proportion equation
   807,280 : 1,114,080.96 = 449,584 : x
2. Step 2: Convert to fraction form
   807,280/1,114,080.96 = 449,584/x
3. Step 3: Cross multiply
   807,280x = 1,114,080.96 × 449,584
4. Step 4: Simplify right side
   807,280x = 500,872,974,320.64
5. Step 5: Solve for x
   x = 500,872,974,320.64/807,280
6. Step 6: Final answer
   x = 620,445.17