Finding the Fourth Proportional to 1,302.67, 1,798.37 and 1,040.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,302.67 : 1,798.37 = 1,040.23 : x
2. Step 2: Convert to fraction form
   1,302.67/1,798.37 = 1,040.23/x
3. Step 3: Cross multiply
   1,302.67x = 1,798.37 × 1,040.23
4. Step 4: Simplify right side
   1,302.67x = 1,870,718.43
5. Step 5: Solve for x
   x = 1,870,718.43/1,302.67
6. Step 6: Final answer
   x = 1,436.06