Finding the Fourth Proportional to 2,221.26, 3,329.73 and 1,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.26 : 3,329.73 = 1,603.50 : x
2. Step 2: Convert to fraction form
   2,221.26/3,329.73 = 1,603.50/x
3. Step 3: Cross multiply
   2,221.26x = 3,329.73 × 1,603.50
4. Step 4: Simplify right side
   2,221.26x = 5,339,222.06
5. Step 5: Solve for x
   x = 5,339,222.06/2,221.26
6. Step 6: Final answer
   x = 2,403.69