Finding the Fourth Proportional to 814,012.14, 1,123,308.47 and 451,469.75

Step by Step Solution

1. Step 1: Write the proportion equation
   814,012.14 : 1,123,308.47 = 451,469.75 : x
2. Step 2: Convert to fraction form
   814,012.14/1,123,308.47 = 451,469.75/x
3. Step 3: Cross multiply
   814,012.14x = 1,123,308.47 × 451,469.75
4. Step 4: Simplify right side
   814,012.14x = 507,139,789,635.92
5. Step 5: Solve for x
   x = 507,139,789,635.92/814,012.14
6. Step 6: Final answer
   x = 623,012.56