Finding the Fourth Proportional to 812,061.72, 1,120,387.55 and 472,464.36

Step by Step Solution

1. Step 1: Write the proportion equation
   812,061.72 : 1,120,387.55 = 472,464.36 : x
2. Step 2: Convert to fraction form
   812,061.72/1,120,387.55 = 472,464.36/x
3. Step 3: Cross multiply
   812,061.72x = 1,120,387.55 × 472,464.36
4. Step 4: Simplify right side
   812,061.72x = 529,343,184,400.40
5. Step 5: Solve for x
   x = 529,343,184,400.40/812,061.72
6. Step 6: Final answer
   x = 651,850.93