Finding the Fourth Proportional to 5,757.58, 7,945.59 and 3,398.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,757.58 : 7,945.59 = 3,398.86 : x
2. Step 2: Convert to fraction form
   5,757.58/7,945.59 = 3,398.86/x
3. Step 3: Cross multiply
   5,757.58x = 7,945.59 × 3,398.86
4. Step 4: Simplify right side
   5,757.58x = 27,005,948.03
5. Step 5: Solve for x
   x = 27,005,948.03/5,757.58
6. Step 6: Final answer
   x = 4,690.50