Finding the Fourth Proportional to 2,189.40, 3,017.22 and 1,559.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.40 : 3,017.22 = 1,559.94 : x
2. Step 2: Convert to fraction form
   2,189.40/3,017.22 = 1,559.94/x
3. Step 3: Cross multiply
   2,189.40x = 3,017.22 × 1,559.94
4. Step 4: Simplify right side
   2,189.40x = 4,706,682.17
5. Step 5: Solve for x
   x = 4,706,682.17/2,189.40
6. Step 6: Final answer
   x = 2,149.76