Finding the Fourth Proportional to 2,054.78, 3,083.54 and 756.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.78 : 3,083.54 = 756.25 : x
2. Step 2: Convert to fraction form
   2,054.78/3,083.54 = 756.25/x
3. Step 3: Cross multiply
   2,054.78x = 3,083.54 × 756.25
4. Step 4: Simplify right side
   2,054.78x = 2,331,933.72
5. Step 5: Solve for x
   x = 2,331,933.72/2,054.78
6. Step 6: Final answer
   x = 1,134.88