Finding the Fourth Proportional to 2,311.67, 3,168.59 and 2,279.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.67 : 3,168.59 = 2,279.27 : x
2. Step 2: Convert to fraction form
   2,311.67/3,168.59 = 2,279.27/x
3. Step 3: Cross multiply
   2,311.67x = 3,168.59 × 2,279.27
4. Step 4: Simplify right side
   2,311.67x = 7,222,068.65
5. Step 5: Solve for x
   x = 7,222,068.65/2,311.67
6. Step 6: Final answer
   x = 3,124.17