Finding the Fourth Proportional to 814,545.30, 1,222,401.15 and 341,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   814,545.30 : 1,222,401.15 = 341,570.10 : x
2. Step 2: Convert to fraction form
   814,545.30/1,222,401.15 = 341,570.10/x
3. Step 3: Cross multiply
   814,545.30x = 1,222,401.15 × 341,570.10
4. Step 4: Simplify right side
   814,545.30x = 417,535,683,045.62
5. Step 5: Solve for x
   x = 417,535,683,045.62/814,545.30
6. Step 6: Final answer
   x = 512,599.71