Finding the Fourth Proportional to 2,054.19, 3,081.57 and 755.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.19 : 3,081.57 = 755.55 : x
2. Step 2: Convert to fraction form
   2,054.19/3,081.57 = 755.55/x
3. Step 3: Cross multiply
   2,054.19x = 3,081.57 × 755.55
4. Step 4: Simplify right side
   2,054.19x = 2,328,280.21
5. Step 5: Solve for x
   x = 2,328,280.21/2,054.19
6. Step 6: Final answer
   x = 1,133.43