Finding the Fourth Proportional to 822,778.72, 1,135,419.60 and 465,082.72

Step by Step Solution

1. Step 1: Write the proportion equation
   822,778.72 : 1,135,419.60 = 465,082.72 : x
2. Step 2: Convert to fraction form
   822,778.72/1,135,419.60 = 465,082.72/x
3. Step 3: Cross multiply
   822,778.72x = 1,135,419.60 × 465,082.72
4. Step 4: Simplify right side
   822,778.72x = 528,064,035,909.31
5. Step 5: Solve for x
   x = 528,064,035,909.31/822,778.72
6. Step 6: Final answer
   x = 641,805.66