Finding the Fourth Proportional to 2,068.18, 2,853.93 and 1,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.18 : 2,853.93 = 1,228.72 : x
2. Step 2: Convert to fraction form
   2,068.18/2,853.93 = 1,228.72/x
3. Step 3: Cross multiply
   2,068.18x = 2,853.93 × 1,228.72
4. Step 4: Simplify right side
   2,068.18x = 3,506,680.87
5. Step 5: Solve for x
   x = 3,506,680.87/2,068.18
6. Step 6: Final answer
   x = 1,695.54