Finding the Fourth Proportional to 814,485.30, 1,222,311.15 and 341,510.10

Step by Step Solution

1. Step 1: Write the proportion equation
   814,485.30 : 1,222,311.15 = 341,510.10 : x
2. Step 2: Convert to fraction form
   814,485.30/1,222,311.15 = 341,510.10/x
3. Step 3: Cross multiply
   814,485.30x = 1,222,311.15 × 341,510.10
4. Step 4: Simplify right side
   814,485.30x = 417,431,603,067.62
5. Step 5: Solve for x
   x = 417,431,603,067.62/814,485.30
6. Step 6: Final answer
   x = 512,509.68