Finding the Fourth Proportional to 2,113.10, 3,168.30 and 1,019.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.10 : 3,168.30 = 1,019.06 : x
2. Step 2: Convert to fraction form
   2,113.10/3,168.30 = 1,019.06/x
3. Step 3: Cross multiply
   2,113.10x = 3,168.30 × 1,019.06
4. Step 4: Simplify right side
   2,113.10x = 3,228,687.80
5. Step 5: Solve for x
   x = 3,228,687.80/2,113.10
6. Step 6: Final answer
   x = 1,527.94