Finding the Fourth Proportional to 3,991.14, 5,507.46 and 2,222.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,991.14 : 5,507.46 = 2,222.46 : x
2. Step 2: Convert to fraction form
   3,991.14/5,507.46 = 2,222.46/x
3. Step 3: Cross multiply
   3,991.14x = 5,507.46 × 2,222.46
4. Step 4: Simplify right side
   3,991.14x = 12,240,109.55
5. Step 5: Solve for x
   x = 12,240,109.55/3,991.14
6. Step 6: Final answer
   x = 3,066.82