Finding the Fourth Proportional to 1,422.56, 1,963.04 and 801.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.56 : 1,963.04 = 801.44 : x
2. Step 2: Convert to fraction form
   1,422.56/1,963.04 = 801.44/x
3. Step 3: Cross multiply
   1,422.56x = 1,963.04 × 801.44
4. Step 4: Simplify right side
   1,422.56x = 1,573,258.78
5. Step 5: Solve for x
   x = 1,573,258.78/1,422.56
6. Step 6: Final answer
   x = 1,105.93