Finding the Fourth Proportional to 2,253.49, 3,109.59 and 1,258.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.49 : 3,109.59 = 1,258.81 : x
2. Step 2: Convert to fraction form
   2,253.49/3,109.59 = 1,258.81/x
3. Step 3: Cross multiply
   2,253.49x = 3,109.59 × 1,258.81
4. Step 4: Simplify right side
   2,253.49x = 3,914,375.21
5. Step 5: Solve for x
   x = 3,914,375.21/2,253.49
6. Step 6: Final answer
   x = 1,737.03