Finding the Fourth Proportional to 1,422.22, 1,962.48 and 832.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.22 : 1,962.48 = 832.72 : x
2. Step 2: Convert to fraction form
   1,422.22/1,962.48 = 832.72/x
3. Step 3: Cross multiply
   1,422.22x = 1,962.48 × 832.72
4. Step 4: Simplify right side
   1,422.22x = 1,634,196.35
5. Step 5: Solve for x
   x = 1,634,196.35/1,422.22
6. Step 6: Final answer
   x = 1,149.05