Finding the Fourth Proportional to 3,944.15, 5,443.71 and 2,266.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944.15 : 5,443.71 = 2,266.70 : x
2. Step 2: Convert to fraction form
   3,944.15/5,443.71 = 2,266.70/x
3. Step 3: Cross multiply
   3,944.15x = 5,443.71 × 2,266.70
4. Step 4: Simplify right side
   3,944.15x = 12,339,257.46
5. Step 5: Solve for x
   x = 12,339,257.46/3,944.15
6. Step 6: Final answer
   x = 3,128.50