Finding the Fourth Proportional to 2,757.39, 4,134.77 and 1,069.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,757.39 : 4,134.77 = 1,069.57 : x
2. Step 2: Convert to fraction form
   2,757.39/4,134.77 = 1,069.57/x
3. Step 3: Cross multiply
   2,757.39x = 4,134.77 × 1,069.57
4. Step 4: Simplify right side
   2,757.39x = 4,422,425.95
5. Step 5: Solve for x
   x = 4,422,425.95/2,757.39
6. Step 6: Final answer
   x = 1,603.84