Finding the Fourth Proportional to 1,298.89, 1,792.46 and 739.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.89 : 1,792.46 = 739.33 : x
2. Step 2: Convert to fraction form
   1,298.89/1,792.46 = 739.33/x
3. Step 3: Cross multiply
   1,298.89x = 1,792.46 × 739.33
4. Step 4: Simplify right side
   1,298.89x = 1,325,216.82
5. Step 5: Solve for x
   x = 1,325,216.82/1,298.89
6. Step 6: Final answer
   x = 1,020.27