Finding the Fourth Proportional to 2,066.00, 2,851.20 and 1,226.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.00 : 2,851.20 = 1,226.61 : x
2. Step 2: Convert to fraction form
   2,066.00/2,851.20 = 1,226.61/x
3. Step 3: Cross multiply
   2,066.00x = 2,851.20 × 1,226.61
4. Step 4: Simplify right side
   2,066.00x = 3,497,310.43
5. Step 5: Solve for x
   x = 3,497,310.43/2,066.00
6. Step 6: Final answer
   x = 1,692.80