Finding the Fourth Proportional to 2,606.72, 3,597.76 and 2,186.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.72 : 3,597.76 = 2,186.56 : x
2. Step 2: Convert to fraction form
   2,606.72/3,597.76 = 2,186.56/x
3. Step 3: Cross multiply
   2,606.72x = 3,597.76 × 2,186.56
4. Step 4: Simplify right side
   2,606.72x = 7,866,718.11
5. Step 5: Solve for x
   x = 7,866,718.11/2,606.72
6. Step 6: Final answer
   x = 3,017.86