Finding the Fourth Proportional to 3,683.92, 5,083.22 and 2,111.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,683.92 : 5,083.22 = 2,111.72 : x
2. Step 2: Convert to fraction form
   3,683.92/5,083.22 = 2,111.72/x
3. Step 3: Cross multiply
   3,683.92x = 5,083.22 × 2,111.72
4. Step 4: Simplify right side
   3,683.92x = 10,734,337.34
5. Step 5: Solve for x
   x = 10,734,337.34/3,683.92
6. Step 6: Final answer
   x = 2,913.84