Finding the Fourth Proportional to 978,630.72, 1,467,948.32 and 268,668.48

Step by Step Solution

1. Step 1: Write the proportion equation
   978,630.72 : 1,467,948.32 = 268,668.48 : x
2. Step 2: Convert to fraction form
   978,630.72/1,467,948.32 = 268,668.48/x
3. Step 3: Cross multiply
   978,630.72x = 1,467,948.32 × 268,668.48
4. Step 4: Simplify right side
   978,630.72x = 394,391,443,852.95
5. Step 5: Solve for x
   x = 394,391,443,852.95/978,630.72
6. Step 6: Final answer
   x = 403,003.33