Finding the Fourth Proportional to 1,909.72, 2,635.03 and 1,163.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,909.72 : 2,635.03 = 1,163.18 : x
2. Step 2: Convert to fraction form
   1,909.72/2,635.03 = 1,163.18/x
3. Step 3: Cross multiply
   1,909.72x = 2,635.03 × 1,163.18
4. Step 4: Simplify right side
   1,909.72x = 3,065,014.20
5. Step 5: Solve for x
   x = 3,065,014.20/1,909.72
6. Step 6: Final answer
   x = 1,604.95