Finding the Fourth Proportional to 2,066.11, 2,851.30 and 1,181.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.11 : 2,851.30 = 1,181.99 : x
2. Step 2: Convert to fraction form
   2,066.11/2,851.30 = 1,181.99/x
3. Step 3: Cross multiply
   2,066.11x = 2,851.30 × 1,181.99
4. Step 4: Simplify right side
   2,066.11x = 3,370,216.69
5. Step 5: Solve for x
   x = 3,370,216.69/2,066.11
6. Step 6: Final answer
   x = 1,631.19