Finding the Fourth Proportional to 2,658.06, 3,668.20 and 1,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.06 : 3,668.20 = 1,609.50 : x
2. Step 2: Convert to fraction form
   2,658.06/3,668.20 = 1,609.50/x
3. Step 3: Cross multiply
   2,658.06x = 3,668.20 × 1,609.50
4. Step 4: Simplify right side
   2,658.06x = 5,903,967.90
5. Step 5: Solve for x
   x = 5,903,967.90/2,658.06
6. Step 6: Final answer
   x = 2,221.16