Finding the Fourth Proportional to 2,322.68, 3,204.78 and 1,391.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.68 : 3,204.78 = 1,391.48 : x
2. Step 2: Convert to fraction form
   2,322.68/3,204.78 = 1,391.48/x
3. Step 3: Cross multiply
   2,322.68x = 3,204.78 × 1,391.48
4. Step 4: Simplify right side
   2,322.68x = 4,459,387.27
5. Step 5: Solve for x
   x = 4,459,387.27/2,322.68
6. Step 6: Final answer
   x = 1,919.93