Finding the Fourth Proportional to 3,683.31, 5,082.61 and 2,111.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,683.31 : 5,082.61 = 2,111.19 : x
2. Step 2: Convert to fraction form
   3,683.31/5,082.61 = 2,111.19/x
3. Step 3: Cross multiply
   3,683.31x = 5,082.61 × 2,111.19
4. Step 4: Simplify right side
   3,683.31x = 10,730,355.41
5. Step 5: Solve for x
   x = 10,730,355.41/3,683.31
6. Step 6: Final answer
   x = 2,913.24