Finding the Fourth Proportional to 2,179.75, 3,268.59 and 792.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.75 : 3,268.59 = 792.10 : x
2. Step 2: Convert to fraction form
   2,179.75/3,268.59 = 792.10/x
3. Step 3: Cross multiply
   2,179.75x = 3,268.59 × 792.10
4. Step 4: Simplify right side
   2,179.75x = 2,589,061.28
5. Step 5: Solve for x
   x = 2,589,061.28/2,179.75
6. Step 6: Final answer
   x = 1,187.78