Finding the Fourth Proportional to 2,723.18, 4,081.60 and 1,240.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.18 : 4,081.60 = 1,240.18 : x
2. Step 2: Convert to fraction form
   2,723.18/4,081.60 = 1,240.18/x
3. Step 3: Cross multiply
   2,723.18x = 4,081.60 × 1,240.18
4. Step 4: Simplify right side
   2,723.18x = 5,061,918.69
5. Step 5: Solve for x
   x = 5,061,918.69/2,723.18
6. Step 6: Final answer
   x = 1,858.83