Finding the Fourth Proportional to 2,423.30, 3,629.55 and 2,099.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.30 : 3,629.55 = 2,099.30 : x
2. Step 2: Convert to fraction form
   2,423.30/3,629.55 = 2,099.30/x
3. Step 3: Cross multiply
   2,423.30x = 3,629.55 × 2,099.30
4. Step 4: Simplify right side
   2,423.30x = 7,619,514.32
5. Step 5: Solve for x
   x = 7,619,514.32/2,423.30
6. Step 6: Final answer
   x = 3,144.27