Finding the Fourth Proportional to 2,227.64, 3,074.54 and 1,399.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.64 : 3,074.54 = 1,399.16 : x
2. Step 2: Convert to fraction form
   2,227.64/3,074.54 = 1,399.16/x
3. Step 3: Cross multiply
   2,227.64x = 3,074.54 × 1,399.16
4. Step 4: Simplify right side
   2,227.64x = 4,301,773.39
5. Step 5: Solve for x
   x = 4,301,773.39/2,227.64
6. Step 6: Final answer
   x = 1,931.09