Finding the Fourth Proportional to 812,003.98, 1,120,567.71 and 449,452.84

Step by Step Solution

1. Step 1: Write the proportion equation
   812,003.98 : 1,120,567.71 = 449,452.84 : x
2. Step 2: Convert to fraction form
   812,003.98/1,120,567.71 = 449,452.84/x
3. Step 3: Cross multiply
   812,003.98x = 1,120,567.71 × 449,452.84
4. Step 4: Simplify right side
   812,003.98x = 503,642,339,671.80
5. Step 5: Solve for x
   x = 503,642,339,671.80/812,003.98
6. Step 6: Final answer
   x = 620,246.15