Finding the Fourth Proportional to 3,128.24, 4,326.42 and 2,796.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.24 : 4,326.42 = 2,796.08 : x
2. Step 2: Convert to fraction form
   3,128.24/4,326.42 = 2,796.08/x
3. Step 3: Cross multiply
   3,128.24x = 4,326.42 × 2,796.08
4. Step 4: Simplify right side
   3,128.24x = 12,097,016.43
5. Step 5: Solve for x
   x = 12,097,016.43/3,128.24
6. Step 6: Final answer
   x = 3,867.04