Finding the Fourth Proportional to 2,258.67, 3,116.88 and 1,264.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.67 : 3,116.88 = 1,264.04 : x
2. Step 2: Convert to fraction form
   2,258.67/3,116.88 = 1,264.04/x
3. Step 3: Cross multiply
   2,258.67x = 3,116.88 × 1,264.04
4. Step 4: Simplify right side
   2,258.67x = 3,939,845.41
5. Step 5: Solve for x
   x = 3,939,845.41/2,258.67
6. Step 6: Final answer
   x = 1,744.32