Finding the Fourth Proportional to 2,767.80, 4,150.76 and 792.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.80 : 4,150.76 = 792.91 : x
2. Step 2: Convert to fraction form
   2,767.80/4,150.76 = 792.91/x
3. Step 3: Cross multiply
   2,767.80x = 4,150.76 × 792.91
4. Step 4: Simplify right side
   2,767.80x = 3,291,161.45
5. Step 5: Solve for x
   x = 3,291,161.45/2,767.80
6. Step 6: Final answer
   x = 1,189.09