Finding the Fourth Proportional to 2,362.55, 3,540.96 and 1,668.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,362.55 : 3,540.96 = 1,668.20 : x
2. Step 2: Convert to fraction form
   2,362.55/3,540.96 = 1,668.20/x
3. Step 3: Cross multiply
   2,362.55x = 3,540.96 × 1,668.20
4. Step 4: Simplify right side
   2,362.55x = 5,907,011.77
5. Step 5: Solve for x
   x = 5,907,011.77/2,362.55
6. Step 6: Final answer
   x = 2,500.27