Finding the Fourth Proportional to 2,603.48, 3,591.56 and 1,608.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.48 : 3,591.56 = 1,608.40 : x
2. Step 2: Convert to fraction form
   2,603.48/3,591.56 = 1,608.40/x
3. Step 3: Cross multiply
   2,603.48x = 3,591.56 × 1,608.40
4. Step 4: Simplify right side
   2,603.48x = 5,776,639.10
5. Step 5: Solve for x
   x = 5,776,639.10/2,603.48
6. Step 6: Final answer
   x = 2,218.81