Finding the Fourth Proportional to 2,611.24, 3,603.78 and 1,563.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.24 : 3,603.78 = 1,563.40 : x
2. Step 2: Convert to fraction form
   2,611.24/3,603.78 = 1,563.40/x
3. Step 3: Cross multiply
   2,611.24x = 3,603.78 × 1,563.40
4. Step 4: Simplify right side
   2,611.24x = 5,634,149.65
5. Step 5: Solve for x
   x = 5,634,149.65/2,611.24
6. Step 6: Final answer
   x = 2,157.65