Finding the Fourth Proportional to 3,919.16, 5,868.21 and 2,066.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,919.16 : 5,868.21 = 2,066.42 : x
2. Step 2: Convert to fraction form
   3,919.16/5,868.21 = 2,066.42/x
3. Step 3: Cross multiply
   3,919.16x = 5,868.21 × 2,066.42
4. Step 4: Simplify right side
   3,919.16x = 12,126,186.51
5. Step 5: Solve for x
   x = 12,126,186.51/3,919.16
6. Step 6: Final answer
   x = 3,094.08