Finding the Fourth Proportional to 2,313.29, 3,469.31 and 1,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,313.29 : 3,469.31 = 1,079.50 : x
2. Step 2: Convert to fraction form
   2,313.29/3,469.31 = 1,079.50/x
3. Step 3: Cross multiply
   2,313.29x = 3,469.31 × 1,079.50
4. Step 4: Simplify right side
   2,313.29x = 3,745,120.15
5. Step 5: Solve for x
   x = 3,745,120.15/2,313.29
6. Step 6: Final answer
   x = 1,618.96