Finding the Fourth Proportional to 1,422.56, 1,963.41 and 801.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.56 : 1,963.41 = 801.56 : x
2. Step 2: Convert to fraction form
   1,422.56/1,963.41 = 801.56/x
3. Step 3: Cross multiply
   1,422.56x = 1,963.41 × 801.56
4. Step 4: Simplify right side
   1,422.56x = 1,573,792.82
5. Step 5: Solve for x
   x = 1,573,792.82/1,422.56
6. Step 6: Final answer
   x = 1,106.31