Finding the Fourth Proportional to 2,722.42, 3,756.72 and 1,543.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.42 : 3,756.72 = 1,543.60 : x
2. Step 2: Convert to fraction form
   2,722.42/3,756.72 = 1,543.60/x
3. Step 3: Cross multiply
   2,722.42x = 3,756.72 × 1,543.60
4. Step 4: Simplify right side
   2,722.42x = 5,798,872.99
5. Step 5: Solve for x
   x = 5,798,872.99/2,722.42
6. Step 6: Final answer
   x = 2,130.04