Finding the Fourth Proportional to 1,422.70, 1,963.31 and 793.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.70 : 1,963.31 = 793.22 : x
2. Step 2: Convert to fraction form
   1,422.70/1,963.31 = 793.22/x
3. Step 3: Cross multiply
   1,422.70x = 1,963.31 × 793.22
4. Step 4: Simplify right side
   1,422.70x = 1,557,336.76
5. Step 5: Solve for x
   x = 1,557,336.76/1,422.70
6. Step 6: Final answer
   x = 1,094.63