Finding the Fourth Proportional to 1,258.02, 1,735.98 and 698.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258.02 : 1,735.98 = 698.46 : x
2. Step 2: Convert to fraction form
   1,258.02/1,735.98 = 698.46/x
3. Step 3: Cross multiply
   1,258.02x = 1,735.98 × 698.46
4. Step 4: Simplify right side
   1,258.02x = 1,212,512.59
5. Step 5: Solve for x
   x = 1,212,512.59/1,258.02
6. Step 6: Final answer
   x = 963.83