Finding the Fourth Proportional to 2,758.50, 4,136.73 and 909.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.50 : 4,136.73 = 909.08 : x
2. Step 2: Convert to fraction form
   2,758.50/4,136.73 = 909.08/x
3. Step 3: Cross multiply
   2,758.50x = 4,136.73 × 909.08
4. Step 4: Simplify right side
   2,758.50x = 3,760,597.82
5. Step 5: Solve for x
   x = 3,760,597.82/2,758.50
6. Step 6: Final answer
   x = 1,363.28