Finding the Fourth Proportional to 2,648.41, 3,971.85 and 1,067.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.41 : 3,971.85 = 1,067.13 : x
2. Step 2: Convert to fraction form
   2,648.41/3,971.85 = 1,067.13/x
3. Step 3: Cross multiply
   2,648.41x = 3,971.85 × 1,067.13
4. Step 4: Simplify right side
   2,648.41x = 4,238,463.10
5. Step 5: Solve for x
   x = 4,238,463.10/2,648.41
6. Step 6: Final answer
   x = 1,600.38