Finding the Fourth Proportional to 2,189.53, 3,021.55 and 1,258.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.53 : 3,021.55 = 1,258.03 : x
2. Step 2: Convert to fraction form
   2,189.53/3,021.55 = 1,258.03/x
3. Step 3: Cross multiply
   2,189.53x = 3,021.55 × 1,258.03
4. Step 4: Simplify right side
   2,189.53x = 3,801,208.25
5. Step 5: Solve for x
   x = 3,801,208.25/2,189.53
6. Step 6: Final answer
   x = 1,736.08