Finding the Fourth Proportional to 2,667.01, 4,000.99 and 911.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.01 : 4,000.99 = 911.61 : x
2. Step 2: Convert to fraction form
   2,667.01/4,000.99 = 911.61/x
3. Step 3: Cross multiply
   2,667.01x = 4,000.99 × 911.61
4. Step 4: Simplify right side
   2,667.01x = 3,647,342.49
5. Step 5: Solve for x
   x = 3,647,342.49/2,667.01
6. Step 6: Final answer
   x = 1,367.58