Finding the Fourth Proportional to 2,007.98, 3,009.36 and 774.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.98 : 3,009.36 = 774.17 : x
2. Step 2: Convert to fraction form
   2,007.98/3,009.36 = 774.17/x
3. Step 3: Cross multiply
   2,007.98x = 3,009.36 × 774.17
4. Step 4: Simplify right side
   2,007.98x = 2,329,756.23
5. Step 5: Solve for x
   x = 2,329,756.23/2,007.98
6. Step 6: Final answer
   x = 1,160.25