Finding the Fourth Proportional to 3,447.56, 5,168.81 and 1,256.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,447.56 : 5,168.81 = 1,256.31 : x
2. Step 2: Convert to fraction form
   3,447.56/5,168.81 = 1,256.31/x
3. Step 3: Cross multiply
   3,447.56x = 5,168.81 × 1,256.31
4. Step 4: Simplify right side
   3,447.56x = 6,493,630.83
5. Step 5: Solve for x
   x = 6,493,630.83/3,447.56
6. Step 6: Final answer
   x = 1,883.54