Finding the Fourth Proportional to 1,668.05, 2,496.18 and 1,228.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668.05 : 2,496.18 = 1,228.27 : x
2. Step 2: Convert to fraction form
   1,668.05/2,496.18 = 1,228.27/x
3. Step 3: Cross multiply
   1,668.05x = 2,496.18 × 1,228.27
4. Step 4: Simplify right side
   1,668.05x = 3,065,983.01
5. Step 5: Solve for x
   x = 3,065,983.01/1,668.05
6. Step 6: Final answer
   x = 1,838.06