Finding the Fourth Proportional to 1,008,225.69, 1,391,382.98 and 578,584.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,225.69 : 1,391,382.98 = 578,584.41 : x
2. Step 2: Convert to fraction form
   1,008,225.69/1,391,382.98 = 578,584.41/x
3. Step 3: Cross multiply
   1,008,225.69x = 1,391,382.98 × 578,584.41
4. Step 4: Simplify right side
   1,008,225.69x = 805,032,500,567.34
5. Step 5: Solve for x
   x = 805,032,500,567.34/1,008,225.69
6. Step 6: Final answer
   x = 798,464.58