Finding the Fourth Proportional to 749,144.56, 1,123,687.05 and 412,852

Step by Step Solution

1. Step 1: Write the proportion equation
   749,144.56 : 1,123,687.05 = 412,852 : x
2. Step 2: Convert to fraction form
   749,144.56/1,123,687.05 = 412,852/x
3. Step 3: Cross multiply
   749,144.56x = 1,123,687.05 × 412,852
4. Step 4: Simplify right side
   749,144.56x = 463,916,445,966.60
5. Step 5: Solve for x
   x = 463,916,445,966.60/749,144.56
6. Step 6: Final answer
   x = 619,261.58