Finding the Fourth Proportional to 3,921.02, 5,410.65 and 2,196.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.02 : 5,410.65 = 2,196.14 : x
2. Step 2: Convert to fraction form
   3,921.02/5,410.65 = 2,196.14/x
3. Step 3: Cross multiply
   3,921.02x = 5,410.65 × 2,196.14
4. Step 4: Simplify right side
   3,921.02x = 11,882,544.89
5. Step 5: Solve for x
   x = 11,882,544.89/3,921.02
6. Step 6: Final answer
   x = 3,030.47