Finding the Fourth Proportional to 1,787.69, 2,682.27 and 814.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787.69 : 2,682.27 = 814.25 : x
2. Step 2: Convert to fraction form
   1,787.69/2,682.27 = 814.25/x
3. Step 3: Cross multiply
   1,787.69x = 2,682.27 × 814.25
4. Step 4: Simplify right side
   1,787.69x = 2,184,045.05
5. Step 5: Solve for x
   x = 2,184,045.05/1,787.69
6. Step 6: Final answer
   x = 1,221.71