Finding the Fourth Proportional to 2,640.18, 3,964.37 and 2,523.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.18 : 3,964.37 = 2,523.32 : x
2. Step 2: Convert to fraction form
   2,640.18/3,964.37 = 2,523.32/x
3. Step 3: Cross multiply
   2,640.18x = 3,964.37 × 2,523.32
4. Step 4: Simplify right side
   2,640.18x = 10,003,341.67
5. Step 5: Solve for x
   x = 10,003,341.67/2,640.18
6. Step 6: Final answer
   x = 3,788.89