Finding the Fourth Proportional to 2,719.82, 4,077.88 and 1,258.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,719.82 : 4,077.88 = 1,258.16 : x
2. Step 2: Convert to fraction form
   2,719.82/4,077.88 = 1,258.16/x
3. Step 3: Cross multiply
   2,719.82x = 4,077.88 × 1,258.16
4. Step 4: Simplify right side
   2,719.82x = 5,130,625.50
5. Step 5: Solve for x
   x = 5,130,625.50/2,719.82
6. Step 6: Final answer
   x = 1,886.38