Finding the Fourth Proportional to 1,422.02, 1,962.39 and 792.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.02 : 1,962.39 = 792.57 : x
2. Step 2: Convert to fraction form
   1,422.02/1,962.39 = 792.57/x
3. Step 3: Cross multiply
   1,422.02x = 1,962.39 × 792.57
4. Step 4: Simplify right side
   1,422.02x = 1,555,330.73
5. Step 5: Solve for x
   x = 1,555,330.73/1,422.02
6. Step 6: Final answer
   x = 1,093.75