Finding the Fourth Proportional to 2,719.48, 4,081.92 and 1,258.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,719.48 : 4,081.92 = 1,258.96 : x
2. Step 2: Convert to fraction form
   2,719.48/4,081.92 = 1,258.96/x
3. Step 3: Cross multiply
   2,719.48x = 4,081.92 × 1,258.96
4. Step 4: Simplify right side
   2,719.48x = 5,138,974.00
5. Step 5: Solve for x
   x = 5,138,974.00/2,719.48
6. Step 6: Final answer
   x = 1,889.69