Finding the Fourth Proportional to 1,082.73, 1,624.69 and 712.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.73 : 1,624.69 = 712.53 : x
2. Step 2: Convert to fraction form
   1,082.73/1,624.69 = 712.53/x
3. Step 3: Cross multiply
   1,082.73x = 1,624.69 × 712.53
4. Step 4: Simplify right side
   1,082.73x = 1,157,641.26
5. Step 5: Solve for x
   x = 1,157,641.26/1,082.73
6. Step 6: Final answer
   x = 1,069.18