Finding the Fourth Proportional to 2,007.32, 3,011.36 and 911.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.32 : 3,011.36 = 911.77 : x
2. Step 2: Convert to fraction form
   2,007.32/3,011.36 = 911.77/x
3. Step 3: Cross multiply
   2,007.32x = 3,011.36 × 911.77
4. Step 4: Simplify right side
   2,007.32x = 2,745,662.46
5. Step 5: Solve for x
   x = 2,745,662.46/2,007.32
6. Step 6: Final answer
   x = 1,367.82