Finding the Fourth Proportional to 1,096.73, 1,645.77 and 731.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.73 : 1,645.77 = 731.78 : x
2. Step 2: Convert to fraction form
   1,096.73/1,645.77 = 731.78/x
3. Step 3: Cross multiply
   1,096.73x = 1,645.77 × 731.78
4. Step 4: Simplify right side
   1,096.73x = 1,204,333.34
5. Step 5: Solve for x
   x = 1,204,333.34/1,096.73
6. Step 6: Final answer
   x = 1,098.12