Finding the Fourth Proportional to 5,323.56, 7,980.18 and 2,549.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,323.56 : 7,980.18 = 2,549.52 : x
2. Step 2: Convert to fraction form
   5,323.56/7,980.18 = 2,549.52/x
3. Step 3: Cross multiply
   5,323.56x = 7,980.18 × 2,549.52
4. Step 4: Simplify right side
   5,323.56x = 20,345,628.51
5. Step 5: Solve for x
   x = 20,345,628.51/5,323.56
6. Step 6: Final answer
   x = 3,821.81