Finding the Fourth Proportional to 1,314.73, 1,815.30 and 922.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.73 : 1,815.30 = 922.28 : x
2. Step 2: Convert to fraction form
   1,314.73/1,815.30 = 922.28/x
3. Step 3: Cross multiply
   1,314.73x = 1,815.30 × 922.28
4. Step 4: Simplify right side
   1,314.73x = 1,674,210.27
5. Step 5: Solve for x
   x = 1,674,210.27/1,314.73
6. Step 6: Final answer
   x = 1,273.43