Finding the Fourth Proportional to 6,859.42, 10,289.04 and 1,665.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,859.42 : 10,289.04 = 1,665.34 : x
2. Step 2: Convert to fraction form
   6,859.42/10,289.04 = 1,665.34/x
3. Step 3: Cross multiply
   6,859.42x = 10,289.04 × 1,665.34
4. Step 4: Simplify right side
   6,859.42x = 17,134,749.87
5. Step 5: Solve for x
   x = 17,134,749.87/6,859.42
6. Step 6: Final answer
   x = 2,497.99