Finding the Fourth Proportional to 1,258.73, 1,738.71 and 1,049.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258.73 : 1,738.71 = 1,049.59 : x
2. Step 2: Convert to fraction form
   1,258.73/1,738.71 = 1,049.59/x
3. Step 3: Cross multiply
   1,258.73x = 1,738.71 × 1,049.59
4. Step 4: Simplify right side
   1,258.73x = 1,824,932.63
5. Step 5: Solve for x
   x = 1,824,932.63/1,258.73
6. Step 6: Final answer
   x = 1,449.82