Finding the Fourth Proportional to 2,066.42, 2,851.08 and 1,226.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.42 : 2,851.08 = 1,226.72 : x
2. Step 2: Convert to fraction form
   2,066.42/2,851.08 = 1,226.72/x
3. Step 3: Cross multiply
   2,066.42x = 2,851.08 × 1,226.72
4. Step 4: Simplify right side
   2,066.42x = 3,497,476.86
5. Step 5: Solve for x
   x = 3,497,476.86/2,066.42
6. Step 6: Final answer
   x = 1,692.53