Finding the Fourth Proportional to 2,068.03, 2,853.28 and 1,228.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.03 : 2,853.28 = 1,228.31 : x
2. Step 2: Convert to fraction form
   2,068.03/2,853.28 = 1,228.31/x
3. Step 3: Cross multiply
   2,068.03x = 2,853.28 × 1,228.31
4. Step 4: Simplify right side
   2,068.03x = 3,504,719.47
5. Step 5: Solve for x
   x = 3,504,719.47/2,068.03
6. Step 6: Final answer
   x = 1,694.71