Finding the Fourth Proportional to 2,287.69, 3,157.78 and 1,626.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.69 : 3,157.78 = 1,626.46 : x
2. Step 2: Convert to fraction form
   2,287.69/3,157.78 = 1,626.46/x
3. Step 3: Cross multiply
   2,287.69x = 3,157.78 × 1,626.46
4. Step 4: Simplify right side
   2,287.69x = 5,135,990.90
5. Step 5: Solve for x
   x = 5,135,990.90/2,287.69
6. Step 6: Final answer
   x = 2,245.06