Finding the Fourth Proportional to 1,200.22, 1,797.55 and 956.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.22 : 1,797.55 = 956.89 : x
2. Step 2: Convert to fraction form
   1,200.22/1,797.55 = 956.89/x
3. Step 3: Cross multiply
   1,200.22x = 1,797.55 × 956.89
4. Step 4: Simplify right side
   1,200.22x = 1,720,057.62
5. Step 5: Solve for x
   x = 1,720,057.62/1,200.22
6. Step 6: Final answer
   x = 1,433.12