Finding the Fourth Proportional to 3,608.38, 4,979.53 and 2,116.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.38 : 4,979.53 = 2,116.02 : x
2. Step 2: Convert to fraction form
   3,608.38/4,979.53 = 2,116.02/x
3. Step 3: Cross multiply
   3,608.38x = 4,979.53 × 2,116.02
4. Step 4: Simplify right side
   3,608.38x = 10,536,762.98
5. Step 5: Solve for x
   x = 10,536,762.98/3,608.38
6. Step 6: Final answer
   x = 2,920.08