Finding the Fourth Proportional to 2,642.56, 3,958.72 and 2,033.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.56 : 3,958.72 = 2,033.28 : x
2. Step 2: Convert to fraction form
   2,642.56/3,958.72 = 2,033.28/x
3. Step 3: Cross multiply
   2,642.56x = 3,958.72 × 2,033.28
4. Step 4: Simplify right side
   2,642.56x = 8,049,186.20
5. Step 5: Solve for x
   x = 8,049,186.20/2,642.56
6. Step 6: Final answer
   x = 3,045.98