Finding the Fourth Proportional to 3,660.21, 5,050.89 and 2,168.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660.21 : 5,050.89 = 2,168.28 : x
2. Step 2: Convert to fraction form
   3,660.21/5,050.89 = 2,168.28/x
3. Step 3: Cross multiply
   3,660.21x = 5,050.89 × 2,168.28
4. Step 4: Simplify right side
   3,660.21x = 10,951,743.77
5. Step 5: Solve for x
   x = 10,951,743.77/3,660.21
6. Step 6: Final answer
   x = 2,992.11