Finding the Fourth Proportional to 2,723.14, 4,081.12 and 1,078.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.14 : 4,081.12 = 1,078.79 : x
2. Step 2: Convert to fraction form
   2,723.14/4,081.12 = 1,078.79/x
3. Step 3: Cross multiply
   2,723.14x = 4,081.12 × 1,078.79
4. Step 4: Simplify right side
   2,723.14x = 4,402,648.34
5. Step 5: Solve for x
   x = 4,402,648.34/2,723.14
6. Step 6: Final answer
   x = 1,616.76