Finding the Fourth Proportional to 2,303.69, 3,178.98 and 1,255.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.69 : 3,178.98 = 1,255.73 : x
2. Step 2: Convert to fraction form
   2,303.69/3,178.98 = 1,255.73/x
3. Step 3: Cross multiply
   2,303.69x = 3,178.98 × 1,255.73
4. Step 4: Simplify right side
   2,303.69x = 3,991,940.56
5. Step 5: Solve for x
   x = 3,991,940.56/2,303.69
6. Step 6: Final answer
   x = 1,732.85