Finding the Fourth Proportional to 3,944.88, 5,919.86 and 3,628.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944.88 : 5,919.86 = 3,628.13 : x
2. Step 2: Convert to fraction form
   3,944.88/5,919.86 = 3,628.13/x
3. Step 3: Cross multiply
   3,944.88x = 5,919.86 × 3,628.13
4. Step 4: Simplify right side
   3,944.88x = 21,478,001.13
5. Step 5: Solve for x
   x = 21,478,001.13/3,944.88
6. Step 6: Final answer
   x = 5,444.53