Finding the Fourth Proportional to 2,772.48, 3,845.60 and 2,672.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.48 : 3,845.60 = 2,672.72 : x
2. Step 2: Convert to fraction form
   2,772.48/3,845.60 = 2,672.72/x
3. Step 3: Cross multiply
   2,772.48x = 3,845.60 × 2,672.72
4. Step 4: Simplify right side
   2,772.48x = 10,278,212.03
5. Step 5: Solve for x
   x = 10,278,212.03/2,772.48
6. Step 6: Final answer
   x = 3,707.23