Finding the Fourth Proportional to 2,456.66, 3,680.88 and 1,067.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.66 : 3,680.88 = 1,067.91 : x
2. Step 2: Convert to fraction form
   2,456.66/3,680.88 = 1,067.91/x
3. Step 3: Cross multiply
   2,456.66x = 3,680.88 × 1,067.91
4. Step 4: Simplify right side
   2,456.66x = 3,930,857.76
5. Step 5: Solve for x
   x = 3,930,857.76/2,456.66
6. Step 6: Final answer
   x = 1,600.08