Finding the Fourth Proportional to 2,007.72, 3,009.27 and 774.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.72 : 3,009.27 = 774.59 : x
2. Step 2: Convert to fraction form
   2,007.72/3,009.27 = 774.59/x
3. Step 3: Cross multiply
   2,007.72x = 3,009.27 × 774.59
4. Step 4: Simplify right side
   2,007.72x = 2,330,950.45
5. Step 5: Solve for x
   x = 2,330,950.45/2,007.72
6. Step 6: Final answer
   x = 1,160.99