Finding the Fourth Proportional to 1,422.96, 1,963.38 and 833.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.96 : 1,963.38 = 833.38 : x
2. Step 2: Convert to fraction form
   1,422.96/1,963.38 = 833.38/x
3. Step 3: Cross multiply
   1,422.96x = 1,963.38 × 833.38
4. Step 4: Simplify right side
   1,422.96x = 1,636,241.62
5. Step 5: Solve for x
   x = 1,636,241.62/1,422.96
6. Step 6: Final answer
   x = 1,149.89