Finding the Fourth Proportional to 1,258.17, 1,736.42 and 734.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258.17 : 1,736.42 = 734.37 : x
2. Step 2: Convert to fraction form
   1,258.17/1,736.42 = 734.37/x
3. Step 3: Cross multiply
   1,258.17x = 1,736.42 × 734.37
4. Step 4: Simplify right side
   1,258.17x = 1,275,174.76
5. Step 5: Solve for x
   x = 1,275,174.76/1,258.17
6. Step 6: Final answer
   x = 1,013.52