Finding the Fourth Proportional to 3,383.76, 5,077.16 and 2,150.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,383.76 : 5,077.16 = 2,150.85 : x
2. Step 2: Convert to fraction form
   3,383.76/5,077.16 = 2,150.85/x
3. Step 3: Cross multiply
   3,383.76x = 5,077.16 × 2,150.85
4. Step 4: Simplify right side
   3,383.76x = 10,920,198.83
5. Step 5: Solve for x
   x = 10,920,198.83/3,383.76
6. Step 6: Final answer
   x = 3,227.24