Finding the Fourth Proportional to 3,682.89, 5,082.39 and 2,111.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,682.89 : 5,082.39 = 2,111.07 : x
2. Step 2: Convert to fraction form
   3,682.89/5,082.39 = 2,111.07/x
3. Step 3: Cross multiply
   3,682.89x = 5,082.39 × 2,111.07
4. Step 4: Simplify right side
   3,682.89x = 10,729,281.06
5. Step 5: Solve for x
   x = 10,729,281.06/3,682.89
6. Step 6: Final answer
   x = 2,913.28