Finding the Fourth Proportional to 2,181.81, 3,274.35 and 1,028.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.81 : 3,274.35 = 1,028.37 : x
2. Step 2: Convert to fraction form
   2,181.81/3,274.35 = 1,028.37/x
3. Step 3: Cross multiply
   2,181.81x = 3,274.35 × 1,028.37
4. Step 4: Simplify right side
   2,181.81x = 3,367,243.31
5. Step 5: Solve for x
   x = 3,367,243.31/2,181.81
6. Step 6: Final answer
   x = 1,543.33