Finding the Fourth Proportional to 2,257.56, 3,114.72 and 1,559.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257.56 : 3,114.72 = 1,559.34 : x
2. Step 2: Convert to fraction form
   2,257.56/3,114.72 = 1,559.34/x
3. Step 3: Cross multiply
   2,257.56x = 3,114.72 × 1,559.34
4. Step 4: Simplify right side
   2,257.56x = 4,856,907.48
5. Step 5: Solve for x
   x = 4,856,907.48/2,257.56
6. Step 6: Final answer
   x = 2,151.40