Finding the Fourth Proportional to 2,257.37, 3,115.16 and 1,262.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257.37 : 3,115.16 = 1,262.69 : x
2. Step 2: Convert to fraction form
   2,257.37/3,115.16 = 1,262.69/x
3. Step 3: Cross multiply
   2,257.37x = 3,115.16 × 1,262.69
4. Step 4: Simplify right side
   2,257.37x = 3,933,475.91
5. Step 5: Solve for x
   x = 3,933,475.91/2,257.37
6. Step 6: Final answer
   x = 1,742.50