Finding the Fourth Proportional to 2,722.78, 3,757.30 and 1,543.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.78 : 3,757.30 = 1,543.82 : x
2. Step 2: Convert to fraction form
   2,722.78/3,757.30 = 1,543.82/x
3. Step 3: Cross multiply
   2,722.78x = 3,757.30 × 1,543.82
4. Step 4: Simplify right side
   2,722.78x = 5,800,594.89
5. Step 5: Solve for x
   x = 5,800,594.89/2,722.78
6. Step 6: Final answer
   x = 2,130.39