Finding the Fourth Proportional to 1,128.29, 1,556.24 and 1,035.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128.29 : 1,556.24 = 1,035.33 : x
2. Step 2: Convert to fraction form
   1,128.29/1,556.24 = 1,035.33/x
3. Step 3: Cross multiply
   1,128.29x = 1,556.24 × 1,035.33
4. Step 4: Simplify right side
   1,128.29x = 1,611,216.78
5. Step 5: Solve for x
   x = 1,611,216.78/1,128.29
6. Step 6: Final answer
   x = 1,428.02