Finding the Fourth Proportional to 598,728, 826,245.72 and 330,456

Step by Step Solution

1. Step 1: Write the proportion equation
   598,728 : 826,245.72 = 330,456 : x
2. Step 2: Convert to fraction form
   598,728/826,245.72 = 330,456/x
3. Step 3: Cross multiply
   598,728x = 826,245.72 × 330,456
4. Step 4: Simplify right side
   598,728x = 273,037,855,648.32
5. Step 5: Solve for x
   x = 273,037,855,648.32/598,728
6. Step 6: Final answer
   x = 456,029.88