Finding the Fourth Proportional to 1,228.82, 1,695.73 and 731.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228.82 : 1,695.73 = 731.34 : x
2. Step 2: Convert to fraction form
   1,228.82/1,695.73 = 731.34/x
3. Step 3: Cross multiply
   1,228.82x = 1,695.73 × 731.34
4. Step 4: Simplify right side
   1,228.82x = 1,240,151.52
5. Step 5: Solve for x
   x = 1,240,151.52/1,228.82
6. Step 6: Final answer
   x = 1,009.23