Finding the Fourth Proportional to 2,756.51, 4,155.42 and 2,573.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.51 : 4,155.42 = 2,573.21 : x
2. Step 2: Convert to fraction form
   2,756.51/4,155.42 = 2,573.21/x
3. Step 3: Cross multiply
   2,756.51x = 4,155.42 × 2,573.21
4. Step 4: Simplify right side
   2,756.51x = 10,692,747.52
5. Step 5: Solve for x
   x = 10,692,747.52/2,756.51
6. Step 6: Final answer
   x = 3,879.09