Finding the Fourth Proportional to 2,055.56, 3,081.48 and 756.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.56 : 3,081.48 = 756.12 : x
2. Step 2: Convert to fraction form
   2,055.56/3,081.48 = 756.12/x
3. Step 3: Cross multiply
   2,055.56x = 3,081.48 × 756.12
4. Step 4: Simplify right side
   2,055.56x = 2,329,968.66
5. Step 5: Solve for x
   x = 2,329,968.66/2,055.56
6. Step 6: Final answer
   x = 1,133.50