Finding the Fourth Proportional to 2,603.31, 3,593.75 and 1,660.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.31 : 3,593.75 = 1,660.39 : x
2. Step 2: Convert to fraction form
   2,603.31/3,593.75 = 1,660.39/x
3. Step 3: Cross multiply
   2,603.31x = 3,593.75 × 1,660.39
4. Step 4: Simplify right side
   2,603.31x = 5,967,050.89
5. Step 5: Solve for x
   x = 5,967,050.89/2,603.31
6. Step 6: Final answer
   x = 2,292.10