Finding the Fourth Proportional to 2,066.49, 3,100.14 and 767.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.49 : 3,100.14 = 767.88 : x
2. Step 2: Convert to fraction form
   2,066.49/3,100.14 = 767.88/x
3. Step 3: Cross multiply
   2,066.49x = 3,100.14 × 767.88
4. Step 4: Simplify right side
   2,066.49x = 2,380,535.50
5. Step 5: Solve for x
   x = 2,380,535.50/2,066.49
6. Step 6: Final answer
   x = 1,151.97