Finding the Fourth Proportional to 5,326.23, 7,989.73 and 2,162.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,326.23 : 7,989.73 = 2,162.15 : x
2. Step 2: Convert to fraction form
   5,326.23/7,989.73 = 2,162.15/x
3. Step 3: Cross multiply
   5,326.23x = 7,989.73 × 2,162.15
4. Step 4: Simplify right side
   5,326.23x = 17,274,994.72
5. Step 5: Solve for x
   x = 17,274,994.72/5,326.23
6. Step 6: Final answer
   x = 3,243.38