Finding the Fourth Proportional to 2,887.94, 3,960.84 and 2,768.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.94 : 3,960.84 = 2,768.88 : x
2. Step 2: Convert to fraction form
   2,887.94/3,960.84 = 2,768.88/x
3. Step 3: Cross multiply
   2,887.94x = 3,960.84 × 2,768.88
4. Step 4: Simplify right side
   2,887.94x = 10,967,090.66
5. Step 5: Solve for x
   x = 10,967,090.66/2,887.94
6. Step 6: Final answer
   x = 3,797.55