Finding the Fourth Proportional to 1,058.69, 1,587.94 and 365.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058.69 : 1,587.94 = 365.38 : x
2. Step 2: Convert to fraction form
   1,058.69/1,587.94 = 365.38/x
3. Step 3: Cross multiply
   1,058.69x = 1,587.94 × 365.38
4. Step 4: Simplify right side
   1,058.69x = 580,196.63
5. Step 5: Solve for x
   x = 580,196.63/1,058.69
6. Step 6: Final answer
   x = 548.03