Finding the Fourth Proportional to 1,422.75, 1,962.75 and 833.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.75 : 1,962.75 = 833.03 : x
2. Step 2: Convert to fraction form
   1,422.75/1,962.75 = 833.03/x
3. Step 3: Cross multiply
   1,422.75x = 1,962.75 × 833.03
4. Step 4: Simplify right side
   1,422.75x = 1,635,019.82
5. Step 5: Solve for x
   x = 1,635,019.82/1,422.75
6. Step 6: Final answer
   x = 1,149.20