Finding the Fourth Proportional to 2,311.10, 3,470.16 and 2,018.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.10 : 3,470.16 = 2,018.42 : x
2. Step 2: Convert to fraction form
   2,311.10/3,470.16 = 2,018.42/x
3. Step 3: Cross multiply
   2,311.10x = 3,470.16 × 2,018.42
4. Step 4: Simplify right side
   2,311.10x = 7,004,240.35
5. Step 5: Solve for x
   x = 7,004,240.35/2,311.10
6. Step 6: Final answer
   x = 3,030.70