Finding the Fourth Proportional to 2,608.02, 3,597.86 and 2,309.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.02 : 3,597.86 = 2,309.57 : x
2. Step 2: Convert to fraction form
   2,608.02/3,597.86 = 2,309.57/x
3. Step 3: Cross multiply
   2,608.02x = 3,597.86 × 2,309.57
4. Step 4: Simplify right side
   2,608.02x = 8,309,502.14
5. Step 5: Solve for x
   x = 8,309,502.14/2,608.02
6. Step 6: Final answer
   x = 3,186.14