Finding the Fourth Proportional to 2,659.10, 3,667.68 and 1,818.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.10 : 3,667.68 = 1,818.59 : x
2. Step 2: Convert to fraction form
   2,659.10/3,667.68 = 1,818.59/x
3. Step 3: Cross multiply
   2,659.10x = 3,667.68 × 1,818.59
4. Step 4: Simplify right side
   2,659.10x = 6,669,987.83
5. Step 5: Solve for x
   x = 6,669,987.83/2,659.10
6. Step 6: Final answer
   x = 2,508.37