Finding the Fourth Proportional to 2,058.13, 2,839.89 and 1,173.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.13 : 2,839.89 = 1,173.95 : x
2. Step 2: Convert to fraction form
   2,058.13/2,839.89 = 1,173.95/x
3. Step 3: Cross multiply
   2,058.13x = 2,839.89 × 1,173.95
4. Step 4: Simplify right side
   2,058.13x = 3,333,888.87
5. Step 5: Solve for x
   x = 3,333,888.87/2,058.13
6. Step 6: Final answer
   x = 1,619.86