Finding the Fourth Proportional to 2,756.91, 4,134.86 and 1,255.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.91 : 4,134.86 = 1,255.58 : x
2. Step 2: Convert to fraction form
   2,756.91/4,134.86 = 1,255.58/x
3. Step 3: Cross multiply
   2,756.91x = 4,134.86 × 1,255.58
4. Step 4: Simplify right side
   2,756.91x = 5,191,620.57
5. Step 5: Solve for x
   x = 5,191,620.57/2,756.91
6. Step 6: Final answer
   x = 1,883.13