Finding the Fourth Proportional to 2,180.82, 3,008.39 and 1,296

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.82 : 3,008.39 = 1,296 : x
2. Step 2: Convert to fraction form
   2,180.82/3,008.39 = 1,296/x
3. Step 3: Cross multiply
   2,180.82x = 3,008.39 × 1,296
4. Step 4: Simplify right side
   2,180.82x = 3,898,874.25
5. Step 5: Solve for x
   x = 3,898,874.25/2,180.82
6. Step 6: Final answer
   x = 1,787.80