Finding the Fourth Proportional to 2,758.50, 4,136.88 and 909.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.50 : 4,136.88 = 909.27 : x
2. Step 2: Convert to fraction form
   2,758.50/4,136.88 = 909.27/x
3. Step 3: Cross multiply
   2,758.50x = 4,136.88 × 909.27
4. Step 4: Simplify right side
   2,758.50x = 3,761,546.67
5. Step 5: Solve for x
   x = 3,761,546.67/2,758.50
6. Step 6: Final answer
   x = 1,363.62