Finding the Fourth Proportional to 2,758.82, 4,137.35 and 909.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.82 : 4,137.35 = 909.59 : x
2. Step 2: Convert to fraction form
   2,758.82/4,137.35 = 909.59/x
3. Step 3: Cross multiply
   2,758.82x = 4,137.35 × 909.59
4. Step 4: Simplify right side
   2,758.82x = 3,763,266.95
5. Step 5: Solve for x
   x = 3,763,266.95/2,758.82
6. Step 6: Final answer
   x = 1,364.09