Finding the Fourth Proportional to 1,422.02, 1,962.38 and 801.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.02 : 1,962.38 = 801.02 : x
2. Step 2: Convert to fraction form
   1,422.02/1,962.38 = 801.02/x
3. Step 3: Cross multiply
   1,422.02x = 1,962.38 × 801.02
4. Step 4: Simplify right side
   1,422.02x = 1,571,905.63
5. Step 5: Solve for x
   x = 1,571,905.63/1,422.02
6. Step 6: Final answer
   x = 1,105.40