Finding the Fourth Proportional to 2,181.76, 3,272.96 and 1,026.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.76 : 3,272.96 = 1,026.56 : x
2. Step 2: Convert to fraction form
   2,181.76/3,272.96 = 1,026.56/x
3. Step 3: Cross multiply
   2,181.76x = 3,272.96 × 1,026.56
4. Step 4: Simplify right side
   2,181.76x = 3,359,889.82
5. Step 5: Solve for x
   x = 3,359,889.82/2,181.76
6. Step 6: Final answer
   x = 1,539.99