Finding the Fourth Proportional to 1,072.33, 1,608.72 and 369.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.33 : 1,608.72 = 369.61 : x
2. Step 2: Convert to fraction form
   1,072.33/1,608.72 = 369.61/x
3. Step 3: Cross multiply
   1,072.33x = 1,608.72 × 369.61
4. Step 4: Simplify right side
   1,072.33x = 594,592.81
5. Step 5: Solve for x
   x = 594,592.81/1,072.33
6. Step 6: Final answer
   x = 554.49