Finding the Fourth Proportional to 714,744.72, 986,371.02 and 412,938.72

Step by Step Solution

1. Step 1: Write the proportion equation
   714,744.72 : 986,371.02 = 412,938.72 : x
2. Step 2: Convert to fraction form
   714,744.72/986,371.02 = 412,938.72/x
3. Step 3: Cross multiply
   714,744.72x = 986,371.02 × 412,938.72
4. Step 4: Simplify right side
   714,744.72x = 407,310,786,443.89
5. Step 5: Solve for x
   x = 407,310,786,443.89/714,744.72
6. Step 6: Final answer
   x = 569,868.90