Finding the Fourth Proportional to 1,258.43, 1,736.59 and 760.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258.43 : 1,736.59 = 760.98 : x
2. Step 2: Convert to fraction form
   1,258.43/1,736.59 = 760.98/x
3. Step 3: Cross multiply
   1,258.43x = 1,736.59 × 760.98
4. Step 4: Simplify right side
   1,258.43x = 1,321,506.45
5. Step 5: Solve for x
   x = 1,321,506.45/1,258.43
6. Step 6: Final answer
   x = 1,050.13