Finding the Fourth Proportional to 2,058.01, 2,839.93 and 1,173.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.01 : 2,839.93 = 1,173.90 : x
2. Step 2: Convert to fraction form
   2,058.01/2,839.93 = 1,173.90/x
3. Step 3: Cross multiply
   2,058.01x = 2,839.93 × 1,173.90
4. Step 4: Simplify right side
   2,058.01x = 3,333,793.83
5. Step 5: Solve for x
   x = 3,333,793.83/2,058.01
6. Step 6: Final answer
   x = 1,619.91