Finding the Fourth Proportional to 1,052.49, 1,581.34 and 682.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.49 : 1,581.34 = 682.53 : x
2. Step 2: Convert to fraction form
   1,052.49/1,581.34 = 682.53/x
3. Step 3: Cross multiply
   1,052.49x = 1,581.34 × 682.53
4. Step 4: Simplify right side
   1,052.49x = 1,079,302.38
5. Step 5: Solve for x
   x = 1,079,302.38/1,052.49
6. Step 6: Final answer
   x = 1,025.48