Finding the Fourth Proportional to 5,434.48, 8,146.86 and 2,659.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,434.48 : 8,146.86 = 2,659.42 : x
2. Step 2: Convert to fraction form
   5,434.48/8,146.86 = 2,659.42/x
3. Step 3: Cross multiply
   5,434.48x = 8,146.86 × 2,659.42
4. Step 4: Simplify right side
   5,434.48x = 21,665,922.42
5. Step 5: Solve for x
   x = 21,665,922.42/5,434.48
6. Step 6: Final answer
   x = 3,986.75