Finding the Fourth Proportional to 2,068.41, 3,100.79 and 768.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.41 : 3,100.79 = 768.97 : x
2. Step 2: Convert to fraction form
   2,068.41/3,100.79 = 768.97/x
3. Step 3: Cross multiply
   2,068.41x = 3,100.79 × 768.97
4. Step 4: Simplify right side
   2,068.41x = 2,384,414.49
5. Step 5: Solve for x
   x = 2,384,414.49/2,068.41
6. Step 6: Final answer
   x = 1,152.78