Finding the Fourth Proportional to 2,399.06, 3,310.72 and 1,351.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.06 : 3,310.72 = 1,351.33 : x
2. Step 2: Convert to fraction form
   2,399.06/3,310.72 = 1,351.33/x
3. Step 3: Cross multiply
   2,399.06x = 3,310.72 × 1,351.33
4. Step 4: Simplify right side
   2,399.06x = 4,473,863.60
5. Step 5: Solve for x
   x = 4,473,863.60/2,399.06
6. Step 6: Final answer
   x = 1,864.84