Finding the Fourth Proportional to 1,422.38, 1,962.96 and 832.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.38 : 1,962.96 = 832.88 : x
2. Step 2: Convert to fraction form
   1,422.38/1,962.96 = 832.88/x
3. Step 3: Cross multiply
   1,422.38x = 1,962.96 × 832.88
4. Step 4: Simplify right side
   1,422.38x = 1,634,910.12
5. Step 5: Solve for x
   x = 1,634,910.12/1,422.38
6. Step 6: Final answer
   x = 1,149.42