Finding the Fourth Proportional to 2,758.25, 4,137.83 and 909.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.25 : 4,137.83 = 909.47 : x
2. Step 2: Convert to fraction form
   2,758.25/4,137.83 = 909.47/x
3. Step 3: Cross multiply
   2,758.25x = 4,137.83 × 909.47
4. Step 4: Simplify right side
   2,758.25x = 3,763,238.05
5. Step 5: Solve for x
   x = 3,763,238.05/2,758.25
6. Step 6: Final answer
   x = 1,364.36