Finding the Fourth Proportional to 1,120.30, 1,552.56 and 1,104.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.30 : 1,552.56 = 1,104.64 : x
2. Step 2: Convert to fraction form
   1,120.30/1,552.56 = 1,104.64/x
3. Step 3: Cross multiply
   1,120.30x = 1,552.56 × 1,104.64
4. Step 4: Simplify right side
   1,120.30x = 1,715,019.88
5. Step 5: Solve for x
   x = 1,715,019.88/1,120.30
6. Step 6: Final answer
   x = 1,530.86