Finding the Fourth Proportional to 2,609.55, 3,912.89 and 2,302.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.55 : 3,912.89 = 2,302.11 : x
2. Step 2: Convert to fraction form
   2,609.55/3,912.89 = 2,302.11/x
3. Step 3: Cross multiply
   2,609.55x = 3,912.89 × 2,302.11
4. Step 4: Simplify right side
   2,609.55x = 9,007,891.69
5. Step 5: Solve for x
   x = 9,007,891.69/2,609.55
6. Step 6: Final answer
   x = 3,451.89