Finding the Fourth Proportional to 2,066.07, 3,100.49 and 767.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.07 : 3,100.49 = 767.55 : x
2. Step 2: Convert to fraction form
   2,066.07/3,100.49 = 767.55/x
3. Step 3: Cross multiply
   2,066.07x = 3,100.49 × 767.55
4. Step 4: Simplify right side
   2,066.07x = 2,379,777.26
5. Step 5: Solve for x
   x = 2,379,777.26/2,066.07
6. Step 6: Final answer
   x = 1,151.84