Finding the Fourth Proportional to 1,144.56, 1,716.82 and 364.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.56 : 1,716.82 = 364.55 : x
2. Step 2: Convert to fraction form
   1,144.56/1,716.82 = 364.55/x
3. Step 3: Cross multiply
   1,144.56x = 1,716.82 × 364.55
4. Step 4: Simplify right side
   1,144.56x = 625,865.04
5. Step 5: Solve for x
   x = 625,865.04/1,144.56
6. Step 6: Final answer
   x = 546.82