Finding the Fourth Proportional to 1,300.72, 1,794.24 and 886

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.72 : 1,794.24 = 886 : x
2. Step 2: Convert to fraction form
   1,300.72/1,794.24 = 886/x
3. Step 3: Cross multiply
   1,300.72x = 1,794.24 × 886
4. Step 4: Simplify right side
   1,300.72x = 1,589,696.64
5. Step 5: Solve for x
   x = 1,589,696.64/1,300.72
6. Step 6: Final answer
   x = 1,222.17