Finding the Fourth Proportional to 3,976.54, 5,958.82 and 3,626.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.54 : 5,958.82 = 3,626.40 : x
2. Step 2: Convert to fraction form
   3,976.54/5,958.82 = 3,626.40/x
3. Step 3: Cross multiply
   3,976.54x = 5,958.82 × 3,626.40
4. Step 4: Simplify right side
   3,976.54x = 21,609,021.05
5. Step 5: Solve for x
   x = 21,609,021.05/3,976.54
6. Step 6: Final answer
   x = 5,434.12