Finding the Fourth Proportional to 2,603.72, 3,593.12 and 1,424.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.72 : 3,593.12 = 1,424.77 : x
2. Step 2: Convert to fraction form
   2,603.72/3,593.12 = 1,424.77/x
3. Step 3: Cross multiply
   2,603.72x = 3,593.12 × 1,424.77
4. Step 4: Simplify right side
   2,603.72x = 5,119,344.49
5. Step 5: Solve for x
   x = 5,119,344.49/2,603.72
6. Step 6: Final answer
   x = 1,966.17