Finding the Fourth Proportional to 730,061.40, 1,007,474.01 and 407,776.20

Step by Step Solution

1. Step 1: Write the proportion equation
   730,061.40 : 1,007,474.01 = 407,776.20 : x
2. Step 2: Convert to fraction form
   730,061.40/1,007,474.01 = 407,776.20/x
3. Step 3: Cross multiply
   730,061.40x = 1,007,474.01 × 407,776.20
4. Step 4: Simplify right side
   730,061.40x = 410,823,923,396.56
5. Step 5: Solve for x
   x = 410,823,923,396.56/730,061.40
6. Step 6: Final answer
   x = 562,725.17