Finding the Fourth Proportional to 1,422.18, 1,962.56 and 792.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.18 : 1,962.56 = 792.69 : x
2. Step 2: Convert to fraction form
   1,422.18/1,962.56 = 792.69/x
3. Step 3: Cross multiply
   1,422.18x = 1,962.56 × 792.69
4. Step 4: Simplify right side
   1,422.18x = 1,555,697.72
5. Step 5: Solve for x
   x = 1,555,697.72/1,422.18
6. Step 6: Final answer
   x = 1,093.88