Finding the Fourth Proportional to 782,144, 1,079,358.72 and 424,448

Step by Step Solution

1. Step 1: Write the proportion equation
   782,144 : 1,079,358.72 = 424,448 : x
2. Step 2: Convert to fraction form
   782,144/1,079,358.72 = 424,448/x
3. Step 3: Cross multiply
   782,144x = 1,079,358.72 × 424,448
4. Step 4: Simplify right side
   782,144x = 458,131,649,986.56
5. Step 5: Solve for x
   x = 458,131,649,986.56/782,144
6. Step 6: Final answer
   x = 585,738.24