Finding the Fourth Proportional to 1,422.50, 1,963.17 and 801.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.50 : 1,963.17 = 801.62 : x
2. Step 2: Convert to fraction form
   1,422.50/1,963.17 = 801.62/x
3. Step 3: Cross multiply
   1,422.50x = 1,963.17 × 801.62
4. Step 4: Simplify right side
   1,422.50x = 1,573,716.34
5. Step 5: Solve for x
   x = 1,573,716.34/1,422.50
6. Step 6: Final answer
   x = 1,106.30