Finding the Fourth Proportional to 2,758.46, 4,137.59 and 909.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.46 : 4,137.59 = 909.53 : x
2. Step 2: Convert to fraction form
   2,758.46/4,137.59 = 909.53/x
3. Step 3: Cross multiply
   2,758.46x = 4,137.59 × 909.53
4. Step 4: Simplify right side
   2,758.46x = 3,763,243.82
5. Step 5: Solve for x
   x = 3,763,243.82/2,758.46
6. Step 6: Final answer
   x = 1,364.26