Finding the Fourth Proportional to 2,284.32, 3,151.10 and 1,399.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.32 : 3,151.10 = 1,399.80 : x
2. Step 2: Convert to fraction form
   2,284.32/3,151.10 = 1,399.80/x
3. Step 3: Cross multiply
   2,284.32x = 3,151.10 × 1,399.80
4. Step 4: Simplify right side
   2,284.32x = 4,410,909.78
5. Step 5: Solve for x
   x = 4,410,909.78/2,284.32
6. Step 6: Final answer
   x = 1,930.95