Finding the Fourth Proportional to 2,433.30, 3,644.55 and 2,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.30 : 3,644.55 = 2,109.30 : x
2. Step 2: Convert to fraction form
   2,433.30/3,644.55 = 2,109.30/x
3. Step 3: Cross multiply
   2,433.30x = 3,644.55 × 2,109.30
4. Step 4: Simplify right side
   2,433.30x = 7,687,449.32
5. Step 5: Solve for x
   x = 7,687,449.32/2,433.30
6. Step 6: Final answer
   x = 3,159.27