Finding the Fourth Proportional to 2,723.78, 4,086.88 and 1,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.78 : 4,086.88 = 1,081.50 : x
2. Step 2: Convert to fraction form
   2,723.78/4,086.88 = 1,081.50/x
3. Step 3: Cross multiply
   2,723.78x = 4,086.88 × 1,081.50
4. Step 4: Simplify right side
   2,723.78x = 4,419,960.72
5. Step 5: Solve for x
   x = 4,419,960.72/2,723.78
6. Step 6: Final answer
   x = 1,622.73