Finding the Fourth Proportional to 3,716.96, 5,128.16 and 2,144.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,716.96 : 5,128.16 = 2,144.48 : x
2. Step 2: Convert to fraction form
   3,716.96/5,128.16 = 2,144.48/x
3. Step 3: Cross multiply
   3,716.96x = 5,128.16 × 2,144.48
4. Step 4: Simplify right side
   3,716.96x = 10,997,236.56
5. Step 5: Solve for x
   x = 10,997,236.56/3,716.96
6. Step 6: Final answer
   x = 2,958.66