Finding the Fourth Proportional to 1,320.83, 1,822.62 and 731.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,320.83 : 1,822.62 = 731.37 : x
2. Step 2: Convert to fraction form
   1,320.83/1,822.62 = 731.37/x
3. Step 3: Cross multiply
   1,320.83x = 1,822.62 × 731.37
4. Step 4: Simplify right side
   1,320.83x = 1,333,009.59
5. Step 5: Solve for x
   x = 1,333,009.59/1,320.83
6. Step 6: Final answer
   x = 1,009.22