Finding the Fourth Proportional to 2,188.74, 3,020.72 and 1,244.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.74 : 3,020.72 = 1,244.83 : x
2. Step 2: Convert to fraction form
   2,188.74/3,020.72 = 1,244.83/x
3. Step 3: Cross multiply
   2,188.74x = 3,020.72 × 1,244.83
4. Step 4: Simplify right side
   2,188.74x = 3,760,282.88
5. Step 5: Solve for x
   x = 3,760,282.88/2,188.74
6. Step 6: Final answer
   x = 1,718.01