Finding the Fourth Proportional to 3,636.92, 5,019.32 and 2,145.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.92 : 5,019.32 = 2,145.32 : x
2. Step 2: Convert to fraction form
   3,636.92/5,019.32 = 2,145.32/x
3. Step 3: Cross multiply
   3,636.92x = 5,019.32 × 2,145.32
4. Step 4: Simplify right side
   3,636.92x = 10,768,011.76
5. Step 5: Solve for x
   x = 10,768,011.76/3,636.92
6. Step 6: Final answer
   x = 2,960.75