Finding the Fourth Proportional to 1,397.75, 1,927.56 and 1,082.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.75 : 1,927.56 = 1,082.53 : x
2. Step 2: Convert to fraction form
   1,397.75/1,927.56 = 1,082.53/x
3. Step 3: Cross multiply
   1,397.75x = 1,927.56 × 1,082.53
4. Step 4: Simplify right side
   1,397.75x = 2,086,641.53
5. Step 5: Solve for x
   x = 2,086,641.53/1,397.75
6. Step 6: Final answer
   x = 1,492.86