Finding the Fourth Proportional to 3,408.69, 4,703.94 and 2,287.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408.69 : 4,703.94 = 2,287.89 : x
2. Step 2: Convert to fraction form
   3,408.69/4,703.94 = 2,287.89/x
3. Step 3: Cross multiply
   3,408.69x = 4,703.94 × 2,287.89
4. Step 4: Simplify right side
   3,408.69x = 10,762,097.29
5. Step 5: Solve for x
   x = 10,762,097.29/3,408.69
6. Step 6: Final answer
   x = 3,157.25