Finding the Fourth Proportional to 2,039.34, 3,056.91 and 806.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.34 : 3,056.91 = 806.25 : x
2. Step 2: Convert to fraction form
   2,039.34/3,056.91 = 806.25/x
3. Step 3: Cross multiply
   2,039.34x = 3,056.91 × 806.25
4. Step 4: Simplify right side
   2,039.34x = 2,464,633.69
5. Step 5: Solve for x
   x = 2,464,633.69/2,039.34
6. Step 6: Final answer
   x = 1,208.54