Finding the Fourth Proportional to 2,058.06, 2,839.89 and 1,173.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.06 : 2,839.89 = 1,173.60 : x
2. Step 2: Convert to fraction form
   2,058.06/2,839.89 = 1,173.60/x
3. Step 3: Cross multiply
   2,058.06x = 2,839.89 × 1,173.60
4. Step 4: Simplify right side
   2,058.06x = 3,332,894.90
5. Step 5: Solve for x
   x = 3,332,894.90/2,058.06
6. Step 6: Final answer
   x = 1,619.44