Finding the Fourth Proportional to 2,284.29, 3,150.45 and 1,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.29 : 3,150.45 = 1,399.50 : x
2. Step 2: Convert to fraction form
   2,284.29/3,150.45 = 1,399.50/x
3. Step 3: Cross multiply
   2,284.29x = 3,150.45 × 1,399.50
4. Step 4: Simplify right side
   2,284.29x = 4,409,054.78
5. Step 5: Solve for x
   x = 4,409,054.78/2,284.29
6. Step 6: Final answer
   x = 1,930.16