Finding the Fourth Proportional to 1,422.24, 1,962.24 and 801.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.24 : 1,962.24 = 801.12 : x
2. Step 2: Convert to fraction form
   1,422.24/1,962.24 = 801.12/x
3. Step 3: Cross multiply
   1,422.24x = 1,962.24 × 801.12
4. Step 4: Simplify right side
   1,422.24x = 1,571,989.71
5. Step 5: Solve for x
   x = 1,571,989.71/1,422.24
6. Step 6: Final answer
   x = 1,105.29