Finding the Fourth Proportional to 714,744, 986,346.72 and 412,938

Step by Step Solution

1. Step 1: Write the proportion equation
   714,744 : 986,346.72 = 412,938 : x
2. Step 2: Convert to fraction form
   714,744/986,346.72 = 412,938/x
3. Step 3: Cross multiply
   714,744x = 986,346.72 × 412,938
4. Step 4: Simplify right side
   714,744x = 407,300,041,863.36
5. Step 5: Solve for x
   x = 407,300,041,863.36/714,744
6. Step 6: Final answer
   x = 569,854.44