Finding the Fourth Proportional to 2,661.98, 4,005.63 and 2,196.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.98 : 4,005.63 = 2,196.83 : x
2. Step 2: Convert to fraction form
   2,661.98/4,005.63 = 2,196.83/x
3. Step 3: Cross multiply
   2,661.98x = 4,005.63 × 2,196.83
4. Step 4: Simplify right side
   2,661.98x = 8,799,668.12
5. Step 5: Solve for x
   x = 8,799,668.12/2,661.98
6. Step 6: Final answer
   x = 3,305.69