Finding the Fourth Proportional to 2,508.75, 3,763.91 and 1,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508.75 : 3,763.91 = 1,123.27 : x
2. Step 2: Convert to fraction form
   2,508.75/3,763.91 = 1,123.27/x
3. Step 3: Cross multiply
   2,508.75x = 3,763.91 × 1,123.27
4. Step 4: Simplify right side
   2,508.75x = 4,227,880.58
5. Step 5: Solve for x
   x = 4,227,880.58/2,508.75
6. Step 6: Final answer
   x = 1,685.25