Finding the Fourth Proportional to 1,321.36, 1,823.46 and 731.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321.36 : 1,823.46 = 731.89 : x
2. Step 2: Convert to fraction form
   1,321.36/1,823.46 = 731.89/x
3. Step 3: Cross multiply
   1,321.36x = 1,823.46 × 731.89
4. Step 4: Simplify right side
   1,321.36x = 1,334,572.14
5. Step 5: Solve for x
   x = 1,334,572.14/1,321.36
6. Step 6: Final answer
   x = 1,010.00