Finding the Fourth Proportional to 2,066.78, 3,099.69 and 1,234.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.78 : 3,099.69 = 1,234.08 : x
2. Step 2: Convert to fraction form
   2,066.78/3,099.69 = 1,234.08/x
3. Step 3: Cross multiply
   2,066.78x = 3,099.69 × 1,234.08
4. Step 4: Simplify right side
   2,066.78x = 3,825,265.44
5. Step 5: Solve for x
   x = 3,825,265.44/2,066.78
6. Step 6: Final answer
   x = 1,850.84