Finding the Fourth Proportional to 2,188.69, 3,020.14 and 1,244.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.69 : 3,020.14 = 1,244.59 : x
2. Step 2: Convert to fraction form
   2,188.69/3,020.14 = 1,244.59/x
3. Step 3: Cross multiply
   2,188.69x = 3,020.14 × 1,244.59
4. Step 4: Simplify right side
   2,188.69x = 3,758,836.04
5. Step 5: Solve for x
   x = 3,758,836.04/2,188.69
6. Step 6: Final answer
   x = 1,717.39