Finding the Fourth Proportional to 3,686.38, 5,525.15 and 1,709.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.38 : 5,525.15 = 1,709.34 : x
2. Step 2: Convert to fraction form
   3,686.38/5,525.15 = 1,709.34/x
3. Step 3: Cross multiply
   3,686.38x = 5,525.15 × 1,709.34
4. Step 4: Simplify right side
   3,686.38x = 9,444,359.90
5. Step 5: Solve for x
   x = 9,444,359.90/3,686.38
6. Step 6: Final answer
   x = 2,561.96