Finding the Fourth Proportional to 3,578.52, 5,367.96 and 1,113.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,578.52 : 5,367.96 = 1,113.48 : x
2. Step 2: Convert to fraction form
   3,578.52/5,367.96 = 1,113.48/x
3. Step 3: Cross multiply
   3,578.52x = 5,367.96 × 1,113.48
4. Step 4: Simplify right side
   3,578.52x = 5,977,116.10
5. Step 5: Solve for x
   x = 5,977,116.10/3,578.52
6. Step 6: Final answer
   x = 1,670.28