Finding the Fourth Proportional to 2,205.63, 3,050.52 and 2,168.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.63 : 3,050.52 = 2,168.72 : x
2. Step 2: Convert to fraction form
   2,205.63/3,050.52 = 2,168.72/x
3. Step 3: Cross multiply
   2,205.63x = 3,050.52 × 2,168.72
4. Step 4: Simplify right side
   2,205.63x = 6,615,723.73
5. Step 5: Solve for x
   x = 6,615,723.73/2,205.63
6. Step 6: Final answer
   x = 2,999.48