Finding the Fourth Proportional to 2,115.86, 3,173.72 and 883.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115.86 : 3,173.72 = 883.24 : x
2. Step 2: Convert to fraction form
   2,115.86/3,173.72 = 883.24/x
3. Step 3: Cross multiply
   2,115.86x = 3,173.72 × 883.24
4. Step 4: Simplify right side
   2,115.86x = 2,803,144.10
5. Step 5: Solve for x
   x = 2,803,144.10/2,115.86
6. Step 6: Final answer
   x = 1,324.83