Finding the Fourth Proportional to 2,754.48, 4,131.78 and 806.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,754.48 : 4,131.78 = 806.82 : x
2. Step 2: Convert to fraction form
   2,754.48/4,131.78 = 806.82/x
3. Step 3: Cross multiply
   2,754.48x = 4,131.78 × 806.82
4. Step 4: Simplify right side
   2,754.48x = 3,333,602.74
5. Step 5: Solve for x
   x = 3,333,602.74/2,754.48
6. Step 6: Final answer
   x = 1,210.25