Finding the Fourth Proportional to 2,181.27, 3,269.31 and 1,009.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.27 : 3,269.31 = 1,009.64 : x
2. Step 2: Convert to fraction form
   2,181.27/3,269.31 = 1,009.64/x
3. Step 3: Cross multiply
   2,181.27x = 3,269.31 × 1,009.64
4. Step 4: Simplify right side
   2,181.27x = 3,300,826.15
5. Step 5: Solve for x
   x = 3,300,826.15/2,181.27
6. Step 6: Final answer
   x = 1,513.26