Finding the Fourth Proportional to 1,144.71, 1,717.10 and 364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.71 : 1,717.10 = 364.72 : x
2. Step 2: Convert to fraction form
   1,144.71/1,717.10 = 364.72/x
3. Step 3: Cross multiply
   1,144.71x = 1,717.10 × 364.72
4. Step 4: Simplify right side
   1,144.71x = 626,260.71
5. Step 5: Solve for x
   x = 626,260.71/1,144.71
6. Step 6: Final answer
   x = 547.09