Finding the Fourth Proportional to 2,768.49, 3,820.79 and 2,068.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.49 : 3,820.79 = 2,068.65 : x
2. Step 2: Convert to fraction form
   2,768.49/3,820.79 = 2,068.65/x
3. Step 3: Cross multiply
   2,768.49x = 3,820.79 × 2,068.65
4. Step 4: Simplify right side
   2,768.49x = 7,903,866.89
5. Step 5: Solve for x
   x = 7,903,866.89/2,768.49
6. Step 6: Final answer
   x = 2,854.94