Finding the Fourth Proportional to 2,057.59, 2,839.41 and 1,173.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.59 : 2,839.41 = 1,173.37 : x
2. Step 2: Convert to fraction form
   2,057.59/2,839.41 = 1,173.37/x
3. Step 3: Cross multiply
   2,057.59x = 2,839.41 × 1,173.37
4. Step 4: Simplify right side
   2,057.59x = 3,331,678.51
5. Step 5: Solve for x
   x = 3,331,678.51/2,057.59
6. Step 6: Final answer
   x = 1,619.22