Finding the Fourth Proportional to 814,052.50, 1,123,406.49 and 451,492.18

Step by Step Solution

1. Step 1: Write the proportion equation
   814,052.50 : 1,123,406.49 = 451,492.18 : x
2. Step 2: Convert to fraction form
   814,052.50/1,123,406.49 = 451,492.18/x
3. Step 3: Cross multiply
   814,052.50x = 1,123,406.49 × 451,492.18
4. Step 4: Simplify right side
   814,052.50x = 507,209,245,196.25
5. Step 5: Solve for x
   x = 507,209,245,196.25/814,052.50
6. Step 6: Final answer
   x = 623,067.00