Finding the Fourth Proportional to 2,068.22, 3,101.52 and 769.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.22 : 3,101.52 = 769.28 : x
2. Step 2: Convert to fraction form
   2,068.22/3,101.52 = 769.28/x
3. Step 3: Cross multiply
   2,068.22x = 3,101.52 × 769.28
4. Step 4: Simplify right side
   2,068.22x = 2,385,937.31
5. Step 5: Solve for x
   x = 2,385,937.31/2,068.22
6. Step 6: Final answer
   x = 1,153.62