Finding the Fourth Proportional to 2,258.16, 3,116.57 and 1,263.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.16 : 3,116.57 = 1,263.53 : x
2. Step 2: Convert to fraction form
   2,258.16/3,116.57 = 1,263.53/x
3. Step 3: Cross multiply
   2,258.16x = 3,116.57 × 1,263.53
4. Step 4: Simplify right side
   2,258.16x = 3,937,857.79
5. Step 5: Solve for x
   x = 3,937,857.79/2,258.16
6. Step 6: Final answer
   x = 1,743.83