Finding the Fourth Proportional to 1,763.31, 2,644.23 and 723.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.31 : 2,644.23 = 723.09 : x
2. Step 2: Convert to fraction form
   1,763.31/2,644.23 = 723.09/x
3. Step 3: Cross multiply
   1,763.31x = 2,644.23 × 723.09
4. Step 4: Simplify right side
   1,763.31x = 1,912,016.27
5. Step 5: Solve for x
   x = 1,912,016.27/1,763.31
6. Step 6: Final answer
   x = 1,084.33