Finding the Fourth Proportional to 2,252.72, 3,108.74 and 1,257.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,252.72 : 3,108.74 = 1,257.98 : x
2. Step 2: Convert to fraction form
   2,252.72/3,108.74 = 1,257.98/x
3. Step 3: Cross multiply
   2,252.72x = 3,108.74 × 1,257.98
4. Step 4: Simplify right side
   2,252.72x = 3,910,710.91
5. Step 5: Solve for x
   x = 3,910,710.91/2,252.72
6. Step 6: Final answer
   x = 1,735.99