Finding the Fourth Proportional to 2,620.35, 3,618.27 and 2,340.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.35 : 3,618.27 = 2,340.09 : x
2. Step 2: Convert to fraction form
   2,620.35/3,618.27 = 2,340.09/x
3. Step 3: Cross multiply
   2,620.35x = 3,618.27 × 2,340.09
4. Step 4: Simplify right side
   2,620.35x = 8,467,077.44
5. Step 5: Solve for x
   x = 8,467,077.44/2,620.35
6. Step 6: Final answer
   x = 3,231.28