Finding the Fourth Proportional to 2,983.24, 4,118.34 and 2,287.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983.24 : 4,118.34 = 2,287.72 : x
2. Step 2: Convert to fraction form
   2,983.24/4,118.34 = 2,287.72/x
3. Step 3: Cross multiply
   2,983.24x = 4,118.34 × 2,287.72
4. Step 4: Simplify right side
   2,983.24x = 9,421,608.78
5. Step 5: Solve for x
   x = 9,421,608.78/2,983.24
6. Step 6: Final answer
   x = 3,158.18