Finding the Fourth Proportional to 575,443.40, 804,571 and 575,443.40

Step by Step Solution

1. Step 1: Write the proportion equation
   575,443.40 : 804,571 = 575,443.40 : x
2. Step 2: Convert to fraction form
   575,443.40/804,571 = 575,443.40/x
3. Step 3: Cross multiply
   575,443.40x = 804,571 × 575,443.40
4. Step 4: Simplify right side
   575,443.40x = 462,985,071,781.40
5. Step 5: Solve for x
   x = 462,985,071,781.40/575,443.40
6. Step 6: Final answer
   x = 804,571