Finding the Fourth Proportional to 3,659.91, 5,491.95 and 3,630.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.91 : 5,491.95 = 3,630.18 : x
2. Step 2: Convert to fraction form
   3,659.91/5,491.95 = 3,630.18/x
3. Step 3: Cross multiply
   3,659.91x = 5,491.95 × 3,630.18
4. Step 4: Simplify right side
   3,659.91x = 19,936,767.05
5. Step 5: Solve for x
   x = 19,936,767.05/3,659.91
6. Step 6: Final answer
   x = 5,447.34