Finding the Fourth Proportional to 2,066.18, 2,851.30 and 1,121.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.18 : 2,851.30 = 1,121.96 : x
2. Step 2: Convert to fraction form
   2,066.18/2,851.30 = 1,121.96/x
3. Step 3: Cross multiply
   2,066.18x = 2,851.30 × 1,121.96
4. Step 4: Simplify right side
   2,066.18x = 3,199,046.77
5. Step 5: Solve for x
   x = 3,199,046.77/2,066.18
6. Step 6: Final answer
   x = 1,548.29