Finding the Fourth Proportional to 2,365.28, 3,549.80 and 1,066.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.28 : 3,549.80 = 1,066.85 : x
2. Step 2: Convert to fraction form
   2,365.28/3,549.80 = 1,066.85/x
3. Step 3: Cross multiply
   2,365.28x = 3,549.80 × 1,066.85
4. Step 4: Simplify right side
   2,365.28x = 3,787,086.38
5. Step 5: Solve for x
   x = 3,787,086.38/2,365.28
6. Step 6: Final answer
   x = 1,601.12