Finding the Fourth Proportional to 1,145.33, 1,717.25 and 734.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.33 : 1,717.25 = 734.81 : x
2. Step 2: Convert to fraction form
   1,145.33/1,717.25 = 734.81/x
3. Step 3: Cross multiply
   1,145.33x = 1,717.25 × 734.81
4. Step 4: Simplify right side
   1,145.33x = 1,261,851.59
5. Step 5: Solve for x
   x = 1,261,851.59/1,145.33
6. Step 6: Final answer
   x = 1,101.74