Finding the Fourth Proportional to 3,575.24, 5,361.78 and 1,109.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,575.24 : 5,361.78 = 1,109.48 : x
2. Step 2: Convert to fraction form
   3,575.24/5,361.78 = 1,109.48/x
3. Step 3: Cross multiply
   3,575.24x = 5,361.78 × 1,109.48
4. Step 4: Simplify right side
   3,575.24x = 5,948,787.67
5. Step 5: Solve for x
   x = 5,948,787.67/3,575.24
6. Step 6: Final answer
   x = 1,663.88