Finding the Fourth Proportional to 494,796.72, 682,819.56 and 279,932.34

Step by Step Solution

1. Step 1: Write the proportion equation
   494,796.72 : 682,819.56 = 279,932.34 : x
2. Step 2: Convert to fraction form
   494,796.72/682,819.56 = 279,932.34/x
3. Step 3: Cross multiply
   494,796.72x = 682,819.56 × 279,932.34
4. Step 4: Simplify right side
   494,796.72x = 191,143,277,228.57
5. Step 5: Solve for x
   x = 191,143,277,228.57/494,796.72
6. Step 6: Final answer
   x = 386,306.68