Finding the Fourth Proportional to 1,053.75, 1,456.56 and 960.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.75 : 1,456.56 = 960.18 : x
2. Step 2: Convert to fraction form
   1,053.75/1,456.56 = 960.18/x
3. Step 3: Cross multiply
   1,053.75x = 1,456.56 × 960.18
4. Step 4: Simplify right side
   1,053.75x = 1,398,559.78
5. Step 5: Solve for x
   x = 1,398,559.78/1,053.75
6. Step 6: Final answer
   x = 1,327.22