Finding the Fourth Proportional to 5,172.69, 7,760.25 and 1,709.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,172.69 : 7,760.25 = 1,709.94 : x
2. Step 2: Convert to fraction form
   5,172.69/7,760.25 = 1,709.94/x
3. Step 3: Cross multiply
   5,172.69x = 7,760.25 × 1,709.94
4. Step 4: Simplify right side
   5,172.69x = 13,269,553.34
5. Step 5: Solve for x
   x = 13,269,553.34/5,172.69
6. Step 6: Final answer
   x = 2,565.31