Finding the Fourth Proportional to 2,198.48, 3,033.86 and 1,313.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.48 : 3,033.86 = 1,313.78 : x
2. Step 2: Convert to fraction form
   2,198.48/3,033.86 = 1,313.78/x
3. Step 3: Cross multiply
   2,198.48x = 3,033.86 × 1,313.78
4. Step 4: Simplify right side
   2,198.48x = 3,985,802.85
5. Step 5: Solve for x
   x = 3,985,802.85/2,198.48
6. Step 6: Final answer
   x = 1,812.99