Finding the Fourth Proportional to 2,068.50, 3,103.83 and 770.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.50 : 3,103.83 = 770.34 : x
2. Step 2: Convert to fraction form
   2,068.50/3,103.83 = 770.34/x
3. Step 3: Cross multiply
   2,068.50x = 3,103.83 × 770.34
4. Step 4: Simplify right side
   2,068.50x = 2,391,004.40
5. Step 5: Solve for x
   x = 2,391,004.40/2,068.50
6. Step 6: Final answer
   x = 1,155.91