Finding the Fourth Proportional to 5,322.31, 7,978.06 and 2,544.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,322.31 : 7,978.06 = 2,544.91 : x
2. Step 2: Convert to fraction form
   5,322.31/7,978.06 = 2,544.91/x
3. Step 3: Cross multiply
   5,322.31x = 7,978.06 × 2,544.91
4. Step 4: Simplify right side
   5,322.31x = 20,303,392.06
5. Step 5: Solve for x
   x = 20,303,392.06/5,322.31
6. Step 6: Final answer
   x = 3,814.77