Finding the Fourth Proportional to 2,604.81, 3,589.90 and 2,057.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.81 : 3,589.90 = 2,057.39 : x
2. Step 2: Convert to fraction form
   2,604.81/3,589.90 = 2,057.39/x
3. Step 3: Cross multiply
   2,604.81x = 3,589.90 × 2,057.39
4. Step 4: Simplify right side
   2,604.81x = 7,385,801.27
5. Step 5: Solve for x
   x = 7,385,801.27/2,604.81
6. Step 6: Final answer
   x = 2,835.45