Finding the Fourth Proportional to 3,994.96, 5,993.52 and 2,145.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994.96 : 5,993.52 = 2,145.28 : x
2. Step 2: Convert to fraction form
   3,994.96/5,993.52 = 2,145.28/x
3. Step 3: Cross multiply
   3,994.96x = 5,993.52 × 2,145.28
4. Step 4: Simplify right side
   3,994.96x = 12,857,778.59
5. Step 5: Solve for x
   x = 12,857,778.59/3,994.96
6. Step 6: Final answer
   x = 3,218.50