Finding the Fourth Proportional to 2,754.72, 3,799.20 and 2,011.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,754.72 : 3,799.20 = 2,011.20 : x
2. Step 2: Convert to fraction form
   2,754.72/3,799.20 = 2,011.20/x
3. Step 3: Cross multiply
   2,754.72x = 3,799.20 × 2,011.20
4. Step 4: Simplify right side
   2,754.72x = 7,640,951.04
5. Step 5: Solve for x
   x = 7,640,951.04/2,754.72
6. Step 6: Final answer
   x = 2,773.77