Finding the Fourth Proportional to 1,096.82, 1,645.42 and 549.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.82 : 1,645.42 = 549.02 : x
2. Step 2: Convert to fraction form
   1,096.82/1,645.42 = 549.02/x
3. Step 3: Cross multiply
   1,096.82x = 1,645.42 × 549.02
4. Step 4: Simplify right side
   1,096.82x = 903,368.49
5. Step 5: Solve for x
   x = 903,368.49/1,096.82
6. Step 6: Final answer
   x = 823.63