Finding the Fourth Proportional to 1,350.56, 1,863 and 1,055.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.56 : 1,863 = 1,055.72 : x
2. Step 2: Convert to fraction form
   1,350.56/1,863 = 1,055.72/x
3. Step 3: Cross multiply
   1,350.56x = 1,863 × 1,055.72
4. Step 4: Simplify right side
   1,350.56x = 1,966,806.36
5. Step 5: Solve for x
   x = 1,966,806.36/1,350.56
6. Step 6: Final answer
   x = 1,456.29