Finding the Fourth Proportional to 2,258.55, 3,116.80 and 1,263.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.55 : 3,116.80 = 1,263.83 : x
2. Step 2: Convert to fraction form
   2,258.55/3,116.80 = 1,263.83/x
3. Step 3: Cross multiply
   2,258.55x = 3,116.80 × 1,263.83
4. Step 4: Simplify right side
   2,258.55x = 3,939,085.27
5. Step 5: Solve for x
   x = 3,939,085.27/2,258.55
6. Step 6: Final answer
   x = 1,744.08