Finding the Fourth Proportional to 3,924.82, 5,419.76 and 2,928.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924.82 : 5,419.76 = 2,928.37 : x
2. Step 2: Convert to fraction form
   3,924.82/5,419.76 = 2,928.37/x
3. Step 3: Cross multiply
   3,924.82x = 5,419.76 × 2,928.37
4. Step 4: Simplify right side
   3,924.82x = 15,871,062.59
5. Step 5: Solve for x
   x = 15,871,062.59/3,924.82
6. Step 6: Final answer
   x = 4,043.77