Finding the Fourth Proportional to 3,559.57, 4,912.17 and 2,144.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,559.57 : 4,912.17 = 2,144.05 : x
2. Step 2: Convert to fraction form
   3,559.57/4,912.17 = 2,144.05/x
3. Step 3: Cross multiply
   3,559.57x = 4,912.17 × 2,144.05
4. Step 4: Simplify right side
   3,559.57x = 10,531,938.09
5. Step 5: Solve for x
   x = 10,531,938.09/3,559.57
6. Step 6: Final answer
   x = 2,958.77