Finding the Fourth Proportional to 1,909.42, 2,635.41 and 1,163.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,909.42 : 2,635.41 = 1,163.62 : x
2. Step 2: Convert to fraction form
   1,909.42/2,635.41 = 1,163.62/x
3. Step 3: Cross multiply
   1,909.42x = 2,635.41 × 1,163.62
4. Step 4: Simplify right side
   1,909.42x = 3,066,615.78
5. Step 5: Solve for x
   x = 3,066,615.78/1,909.42
6. Step 6: Final answer
   x = 1,606.05