Finding the Fourth Proportional to 2,058.69, 2,840.45 and 1,174.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.69 : 2,840.45 = 1,174.32 : x
2. Step 2: Convert to fraction form
   2,058.69/2,840.45 = 1,174.32/x
3. Step 3: Cross multiply
   2,058.69x = 2,840.45 × 1,174.32
4. Step 4: Simplify right side
   2,058.69x = 3,335,591.37
5. Step 5: Solve for x
   x = 3,335,591.37/2,058.69
6. Step 6: Final answer
   x = 1,620.25