Finding the Fourth Proportional to 3,983.40, 5,499.81 and 3,650.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.40 : 5,499.81 = 3,650.58 : x
2. Step 2: Convert to fraction form
   3,983.40/5,499.81 = 3,650.58/x
3. Step 3: Cross multiply
   3,983.40x = 5,499.81 × 3,650.58
4. Step 4: Simplify right side
   3,983.40x = 20,077,496.39
5. Step 5: Solve for x
   x = 20,077,496.39/3,983.40
6. Step 6: Final answer
   x = 5,040.29