Finding the Fourth Proportional to 2,603.88, 3,593.57 and 1,556.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.88 : 3,593.57 = 1,556.15 : x
2. Step 2: Convert to fraction form
   2,603.88/3,593.57 = 1,556.15/x
3. Step 3: Cross multiply
   2,603.88x = 3,593.57 × 1,556.15
4. Step 4: Simplify right side
   2,603.88x = 5,592,108.21
5. Step 5: Solve for x
   x = 5,592,108.21/2,603.88
6. Step 6: Final answer
   x = 2,147.61