Finding the Fourth Proportional to 2,066.22, 2,855.48 and 1,692.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.22 : 2,855.48 = 1,692.61 : x
2. Step 2: Convert to fraction form
   2,066.22/2,855.48 = 1,692.61/x
3. Step 3: Cross multiply
   2,066.22x = 2,855.48 × 1,692.61
4. Step 4: Simplify right side
   2,066.22x = 4,833,198.40
5. Step 5: Solve for x
   x = 4,833,198.40/2,066.22
6. Step 6: Final answer
   x = 2,339.15