Finding the Fourth Proportional to 2,003.88, 2,765.61 and 1,258.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.88 : 2,765.61 = 1,258.05 : x
2. Step 2: Convert to fraction form
   2,003.88/2,765.61 = 1,258.05/x
3. Step 3: Cross multiply
   2,003.88x = 2,765.61 × 1,258.05
4. Step 4: Simplify right side
   2,003.88x = 3,479,275.66
5. Step 5: Solve for x
   x = 3,479,275.66/2,003.88
6. Step 6: Final answer
   x = 1,736.27