Finding the Fourth Proportional to 2,181.31, 3,271.98 and 1,026.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.31 : 3,271.98 = 1,026.79 : x
2. Step 2: Convert to fraction form
   2,181.31/3,271.98 = 1,026.79/x
3. Step 3: Cross multiply
   2,181.31x = 3,271.98 × 1,026.79
4. Step 4: Simplify right side
   2,181.31x = 3,359,636.34
5. Step 5: Solve for x
   x = 3,359,636.34/2,181.31
6. Step 6: Final answer
   x = 1,540.19