Finding the Fourth Proportional to 3,630.89, 5,008.97 and 2,138.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630.89 : 5,008.97 = 2,138.10 : x
2. Step 2: Convert to fraction form
   3,630.89/5,008.97 = 2,138.10/x
3. Step 3: Cross multiply
   3,630.89x = 5,008.97 × 2,138.10
4. Step 4: Simplify right side
   3,630.89x = 10,709,660.81
5. Step 5: Solve for x
   x = 10,709,660.81/3,630.89
6. Step 6: Final answer
   x = 2,949.59