Finding the Fourth Proportional to 1,106.81, 1,524.24 and 1,103.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.81 : 1,524.24 = 1,103.47 : x
2. Step 2: Convert to fraction form
   1,106.81/1,524.24 = 1,103.47/x
3. Step 3: Cross multiply
   1,106.81x = 1,524.24 × 1,103.47
4. Step 4: Simplify right side
   1,106.81x = 1,681,949.30
5. Step 5: Solve for x
   x = 1,681,949.30/1,106.81
6. Step 6: Final answer
   x = 1,519.64