Finding the Fourth Proportional to 3,892.39, 5,371.61 and 2,214.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.39 : 5,371.61 = 2,214.03 : x
2. Step 2: Convert to fraction form
   3,892.39/5,371.61 = 2,214.03/x
3. Step 3: Cross multiply
   3,892.39x = 5,371.61 × 2,214.03
4. Step 4: Simplify right side
   3,892.39x = 11,892,931.37
5. Step 5: Solve for x
   x = 11,892,931.37/3,892.39
6. Step 6: Final answer
   x = 3,055.43