Finding the Fourth Proportional to 1,016.82, 1,522.80 and 553.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.82 : 1,522.80 = 553.91 : x
2. Step 2: Convert to fraction form
   1,016.82/1,522.80 = 553.91/x
3. Step 3: Cross multiply
   1,016.82x = 1,522.80 × 553.91
4. Step 4: Simplify right side
   1,016.82x = 843,486.53
5. Step 5: Solve for x
   x = 843,486.53/1,016.82
6. Step 6: Final answer
   x = 829.53