Finding the Fourth Proportional to 2,055.40, 3,084.22 and 756.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.40 : 3,084.22 = 756.68 : x
2. Step 2: Convert to fraction form
   2,055.40/3,084.22 = 756.68/x
3. Step 3: Cross multiply
   2,055.40x = 3,084.22 × 756.68
4. Step 4: Simplify right side
   2,055.40x = 2,333,767.59
5. Step 5: Solve for x
   x = 2,333,767.59/2,055.40
6. Step 6: Final answer
   x = 1,135.43