Finding the Fourth Proportional to 2,066.07, 2,851.18 and 1,121.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.07 : 2,851.18 = 1,121.86 : x
2. Step 2: Convert to fraction form
   2,066.07/2,851.18 = 1,121.86/x
3. Step 3: Cross multiply
   2,066.07x = 2,851.18 × 1,121.86
4. Step 4: Simplify right side
   2,066.07x = 3,198,629.76
5. Step 5: Solve for x
   x = 3,198,629.76/2,066.07
6. Step 6: Final answer
   x = 1,548.17