Finding the Fourth Proportional to 2,113.30, 3,164.55 and 2,016.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.30 : 3,164.55 = 2,016.10 : x
2. Step 2: Convert to fraction form
   2,113.30/3,164.55 = 2,016.10/x
3. Step 3: Cross multiply
   2,113.30x = 3,164.55 × 2,016.10
4. Step 4: Simplify right side
   2,113.30x = 6,380,049.26
5. Step 5: Solve for x
   x = 6,380,049.26/2,113.30
6. Step 6: Final answer
   x = 3,019.00