Finding the Fourth Proportional to 2,258.29, 3,116.42 and 1,263.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.29 : 3,116.42 = 1,263.57 : x
2. Step 2: Convert to fraction form
   2,258.29/3,116.42 = 1,263.57/x
3. Step 3: Cross multiply
   2,258.29x = 3,116.42 × 1,263.57
4. Step 4: Simplify right side
   2,258.29x = 3,937,808.50
5. Step 5: Solve for x
   x = 3,937,808.50/2,258.29
6. Step 6: Final answer
   x = 1,743.71