Finding the Fourth Proportional to 2,423.72, 3,636.04 and 1,107.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.72 : 3,636.04 = 1,107.56 : x
2. Step 2: Convert to fraction form
   2,423.72/3,636.04 = 1,107.56/x
3. Step 3: Cross multiply
   2,423.72x = 3,636.04 × 1,107.56
4. Step 4: Simplify right side
   2,423.72x = 4,027,132.46
5. Step 5: Solve for x
   x = 4,027,132.46/2,423.72
6. Step 6: Final answer
   x = 1,661.55