Finding the Fourth Proportional to 2,189.10, 3,019.59 and 1,304.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.10 : 3,019.59 = 1,304.25 : x
2. Step 2: Convert to fraction form
   2,189.10/3,019.59 = 1,304.25/x
3. Step 3: Cross multiply
   2,189.10x = 3,019.59 × 1,304.25
4. Step 4: Simplify right side
   2,189.10x = 3,938,300.26
5. Step 5: Solve for x
   x = 3,938,300.26/2,189.10
6. Step 6: Final answer
   x = 1,799.05