Finding the Fourth Proportional to 2,723.50, 4,086.21 and 1,081.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.50 : 4,086.21 = 1,081.18 : x
2. Step 2: Convert to fraction form
   2,723.50/4,086.21 = 1,081.18/x
3. Step 3: Cross multiply
   2,723.50x = 4,086.21 × 1,081.18
4. Step 4: Simplify right side
   2,723.50x = 4,417,928.53
5. Step 5: Solve for x
   x = 4,417,928.53/2,723.50
6. Step 6: Final answer
   x = 1,622.15