Finding the Fourth Proportional to 1,422.72, 1,963.33 and 801.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.72 : 1,963.33 = 801.72 : x
2. Step 2: Convert to fraction form
   1,422.72/1,963.33 = 801.72/x
3. Step 3: Cross multiply
   1,422.72x = 1,963.33 × 801.72
4. Step 4: Simplify right side
   1,422.72x = 1,574,038.92
5. Step 5: Solve for x
   x = 1,574,038.92/1,422.72
6. Step 6: Final answer
   x = 1,106.36