Finding the Fourth Proportional to 3,979.26, 5,491.33 and 2,210.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979.26 : 5,491.33 = 2,210.83 : x
2. Step 2: Convert to fraction form
   3,979.26/5,491.33 = 2,210.83/x
3. Step 3: Cross multiply
   3,979.26x = 5,491.33 × 2,210.83
4. Step 4: Simplify right side
   3,979.26x = 12,140,377.85
5. Step 5: Solve for x
   x = 12,140,377.85/3,979.26
6. Step 6: Final answer
   x = 3,050.91