Finding the Fourth Proportional to 2,194.49, 3,028.46 and 1,310.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.49 : 3,028.46 = 1,310.81 : x
2. Step 2: Convert to fraction form
   2,194.49/3,028.46 = 1,310.81/x
3. Step 3: Cross multiply
   2,194.49x = 3,028.46 × 1,310.81
4. Step 4: Simplify right side
   2,194.49x = 3,969,713.96
5. Step 5: Solve for x
   x = 3,969,713.96/2,194.49
6. Step 6: Final answer
   x = 1,808.94