Finding the Fourth Proportional to 1,102.82, 1,521.50 and 683.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,102.82 : 1,521.50 = 683.51 : x
2. Step 2: Convert to fraction form
   1,102.82/1,521.50 = 683.51/x
3. Step 3: Cross multiply
   1,102.82x = 1,521.50 × 683.51
4. Step 4: Simplify right side
   1,102.82x = 1,039,949.44
5. Step 5: Solve for x
   x = 1,039,949.44/1,102.82
6. Step 6: Final answer
   x = 943.00