Finding the Fourth Proportional to 1,422.06, 1,962.40 and 792.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.06 : 1,962.40 = 792.56 : x
2. Step 2: Convert to fraction form
   1,422.06/1,962.40 = 792.56/x
3. Step 3: Cross multiply
   1,422.06x = 1,962.40 × 792.56
4. Step 4: Simplify right side
   1,422.06x = 1,555,319.74
5. Step 5: Solve for x
   x = 1,555,319.74/1,422.06
6. Step 6: Final answer
   x = 1,093.71