Finding the Fourth Proportional to 2,672.06, 4,007.25 and 1,112.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.06 : 4,007.25 = 1,112.49 : x
2. Step 2: Convert to fraction form
   2,672.06/4,007.25 = 1,112.49/x
3. Step 3: Cross multiply
   2,672.06x = 4,007.25 × 1,112.49
4. Step 4: Simplify right side
   2,672.06x = 4,458,025.55
5. Step 5: Solve for x
   x = 4,458,025.55/2,672.06
6. Step 6: Final answer
   x = 1,668.39