Finding the Fourth Proportional to 2,119.92, 3,175.56 and 886.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.92 : 3,175.56 = 886.83 : x
2. Step 2: Convert to fraction form
   2,119.92/3,175.56 = 886.83/x
3. Step 3: Cross multiply
   2,119.92x = 3,175.56 × 886.83
4. Step 4: Simplify right side
   2,119.92x = 2,816,181.87
5. Step 5: Solve for x
   x = 2,816,181.87/2,119.92
6. Step 6: Final answer
   x = 1,328.44