Finding the Fourth Proportional to 3,716.42, 5,128.47 and 2,144.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,716.42 : 5,128.47 = 2,144.42 : x
2. Step 2: Convert to fraction form
   3,716.42/5,128.47 = 2,144.42/x
3. Step 3: Cross multiply
   3,716.42x = 5,128.47 × 2,144.42
4. Step 4: Simplify right side
   3,716.42x = 10,997,593.64
5. Step 5: Solve for x
   x = 10,997,593.64/3,716.42
6. Step 6: Final answer
   x = 2,959.19