Finding the Fourth Proportional to 3,607.10, 5,411.31 and 1,659.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.10 : 5,411.31 = 1,659.25 : x
2. Step 2: Convert to fraction form
   3,607.10/5,411.31 = 1,659.25/x
3. Step 3: Cross multiply
   3,607.10x = 5,411.31 × 1,659.25
4. Step 4: Simplify right side
   3,607.10x = 8,978,707.82
5. Step 5: Solve for x
   x = 8,978,707.82/3,607.10
6. Step 6: Final answer
   x = 2,489.18