Finding the Fourth Proportional to 810,591.76, 1,118,674.52 and 448,007.83

Step by Step Solution

1. Step 1: Write the proportion equation
   810,591.76 : 1,118,674.52 = 448,007.83 : x
2. Step 2: Convert to fraction form
   810,591.76/1,118,674.52 = 448,007.83/x
3. Step 3: Cross multiply
   810,591.76x = 1,118,674.52 × 448,007.83
4. Step 4: Simplify right side
   810,591.76x = 501,174,941,941.45
5. Step 5: Solve for x
   x = 501,174,941,941.45/810,591.76
6. Step 6: Final answer
   x = 618,282.80