Finding the Fourth Proportional to 494,780.50, 682,798.41 and 268,426

Step by Step Solution

1. Step 1: Write the proportion equation
   494,780.50 : 682,798.41 = 268,426 : x
2. Step 2: Convert to fraction form
   494,780.50/682,798.41 = 268,426/x
3. Step 3: Cross multiply
   494,780.50x = 682,798.41 × 268,426
4. Step 4: Simplify right side
   494,780.50x = 183,280,846,002.66
5. Step 5: Solve for x
   x = 183,280,846,002.66/494,780.50
6. Step 6: Final answer
   x = 370,428.60