Finding the Fourth Proportional to 1,019.38, 1,529.55 and 369.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.38 : 1,529.55 = 369.94 : x
2. Step 2: Convert to fraction form
   1,019.38/1,529.55 = 369.94/x
3. Step 3: Cross multiply
   1,019.38x = 1,529.55 × 369.94
4. Step 4: Simplify right side
   1,019.38x = 565,841.73
5. Step 5: Solve for x
   x = 565,841.73/1,019.38
6. Step 6: Final answer
   x = 555.08