Finding the Fourth Proportional to 1,318.28, 1,819.46 and 814.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,318.28 : 1,819.46 = 814.25 : x
2. Step 2: Convert to fraction form
   1,318.28/1,819.46 = 814.25/x
3. Step 3: Cross multiply
   1,318.28x = 1,819.46 × 814.25
4. Step 4: Simplify right side
   1,318.28x = 1,481,501.89
5. Step 5: Solve for x
   x = 1,481,501.89/1,318.28
6. Step 6: Final answer
   x = 1,123.82