Finding the Fourth Proportional to 1,554.53, 2,144.61 and 1,082.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.53 : 2,144.61 = 1,082.80 : x
2. Step 2: Convert to fraction form
   1,554.53/2,144.61 = 1,082.80/x
3. Step 3: Cross multiply
   1,554.53x = 2,144.61 × 1,082.80
4. Step 4: Simplify right side
   1,554.53x = 2,322,186.39
5. Step 5: Solve for x
   x = 2,322,186.39/1,554.53
6. Step 6: Final answer
   x = 1,493.82