Finding the Fourth Proportional to 2,722.42, 3,756.90 and 1,543.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.42 : 3,756.90 = 1,543.42 : x
2. Step 2: Convert to fraction form
   2,722.42/3,756.90 = 1,543.42/x
3. Step 3: Cross multiply
   2,722.42x = 3,756.90 × 1,543.42
4. Step 4: Simplify right side
   2,722.42x = 5,798,474.60
5. Step 5: Solve for x
   x = 5,798,474.60/2,722.42
6. Step 6: Final answer
   x = 2,129.90