Finding the Fourth Proportional to 2,198.89, 3,034.37 and 1,315.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.89 : 3,034.37 = 1,315.18 : x
2. Step 2: Convert to fraction form
   2,198.89/3,034.37 = 1,315.18/x
3. Step 3: Cross multiply
   2,198.89x = 3,034.37 × 1,315.18
4. Step 4: Simplify right side
   2,198.89x = 3,990,742.74
5. Step 5: Solve for x
   x = 3,990,742.74/2,198.89
6. Step 6: Final answer
   x = 1,814.89