Finding the Fourth Proportional to 2,068.32, 3,102.69 and 769.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.32 : 3,102.69 = 769.49 : x
2. Step 2: Convert to fraction form
   2,068.32/3,102.69 = 769.49/x
3. Step 3: Cross multiply
   2,068.32x = 3,102.69 × 769.49
4. Step 4: Simplify right side
   2,068.32x = 2,387,488.93
5. Step 5: Solve for x
   x = 2,387,488.93/2,068.32
6. Step 6: Final answer
   x = 1,154.31