Finding the Fourth Proportional to 2,255.42, 3,112.04 and 1,260.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.42 : 3,112.04 = 1,260.58 : x
2. Step 2: Convert to fraction form
   2,255.42/3,112.04 = 1,260.58/x
3. Step 3: Cross multiply
   2,255.42x = 3,112.04 × 1,260.58
4. Step 4: Simplify right side
   2,255.42x = 3,922,975.38
5. Step 5: Solve for x
   x = 3,922,975.38/2,255.42
6. Step 6: Final answer
   x = 1,739.35