Finding the Fourth Proportional to 1,144.30, 1,715.79 and 364.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.30 : 1,715.79 = 364.15 : x
2. Step 2: Convert to fraction form
   1,144.30/1,715.79 = 364.15/x
3. Step 3: Cross multiply
   1,144.30x = 1,715.79 × 364.15
4. Step 4: Simplify right side
   1,144.30x = 624,796.35
5. Step 5: Solve for x
   x = 624,796.35/1,144.30
6. Step 6: Final answer
   x = 546.01