Finding the Fourth Proportional to 3,597.78, 4,966.60 and 2,105.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,597.78 : 4,966.60 = 2,105.22 : x
2. Step 2: Convert to fraction form
   3,597.78/4,966.60 = 2,105.22/x
3. Step 3: Cross multiply
   3,597.78x = 4,966.60 × 2,105.22
4. Step 4: Simplify right side
   3,597.78x = 10,455,785.65
5. Step 5: Solve for x
   x = 10,455,785.65/3,597.78
6. Step 6: Final answer
   x = 2,906.18