Finding the Fourth Proportional to 2,722.86, 3,757.58 and 1,528.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.86 : 3,757.58 = 1,528.11 : x
2. Step 2: Convert to fraction form
   2,722.86/3,757.58 = 1,528.11/x
3. Step 3: Cross multiply
   2,722.86x = 3,757.58 × 1,528.11
4. Step 4: Simplify right side
   2,722.86x = 5,741,978.54
5. Step 5: Solve for x
   x = 5,741,978.54/2,722.86
6. Step 6: Final answer
   x = 2,108.81