Finding the Fourth Proportional to 2,723.12, 4,081.49 and 1,260.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.12 : 4,081.49 = 1,260.56 : x
2. Step 2: Convert to fraction form
   2,723.12/4,081.49 = 1,260.56/x
3. Step 3: Cross multiply
   2,723.12x = 4,081.49 × 1,260.56
4. Step 4: Simplify right side
   2,723.12x = 5,144,971.66
5. Step 5: Solve for x
   x = 5,144,971.66/2,723.12
6. Step 6: Final answer
   x = 1,889.37