Finding the Fourth Proportional to 2,768.80, 4,146.72 and 2,114.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.80 : 4,146.72 = 2,114.32 : x
2. Step 2: Convert to fraction form
   2,768.80/4,146.72 = 2,114.32/x
3. Step 3: Cross multiply
   2,768.80x = 4,146.72 × 2,114.32
4. Step 4: Simplify right side
   2,768.80x = 8,767,493.03
5. Step 5: Solve for x
   x = 8,767,493.03/2,768.80
6. Step 6: Final answer
   x = 3,166.53