Finding the Fourth Proportional to 2,057.54, 2,839.25 and 1,173.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.54 : 2,839.25 = 1,173.17 : x
2. Step 2: Convert to fraction form
   2,057.54/2,839.25 = 1,173.17/x
3. Step 3: Cross multiply
   2,057.54x = 2,839.25 × 1,173.17
4. Step 4: Simplify right side
   2,057.54x = 3,330,902.86
5. Step 5: Solve for x
   x = 3,330,902.86/2,057.54
6. Step 6: Final answer
   x = 1,618.88