Finding the Fourth Proportional to 1,809.31, 2,496.92 and 1,023.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.31 : 2,496.92 = 1,023.31 : x
2. Step 2: Convert to fraction form
   1,809.31/2,496.92 = 1,023.31/x
3. Step 3: Cross multiply
   1,809.31x = 2,496.92 × 1,023.31
4. Step 4: Simplify right side
   1,809.31x = 2,555,123.21
5. Step 5: Solve for x
   x = 2,555,123.21/1,809.31
6. Step 6: Final answer
   x = 1,412.21