Finding the Fourth Proportional to 2,659.65, 3,669.33 and 2,655.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.65 : 3,669.33 = 2,655.55 : x
2. Step 2: Convert to fraction form
   2,659.65/3,669.33 = 2,655.55/x
3. Step 3: Cross multiply
   2,659.65x = 3,669.33 × 2,655.55
4. Step 4: Simplify right side
   2,659.65x = 9,744,088.89
5. Step 5: Solve for x
   x = 9,744,088.89/2,659.65
6. Step 6: Final answer
   x = 3,663.67