Finding the Fourth Proportional to 2,303.88, 3,179.31 and 1,255.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.88 : 3,179.31 = 1,255.95 : x
2. Step 2: Convert to fraction form
   2,303.88/3,179.31 = 1,255.95/x
3. Step 3: Cross multiply
   2,303.88x = 3,179.31 × 1,255.95
4. Step 4: Simplify right side
   2,303.88x = 3,993,054.39
5. Step 5: Solve for x
   x = 3,993,054.39/2,303.88
6. Step 6: Final answer
   x = 1,733.19