Finding the Fourth Proportional to 2,365.42, 3,549.66 and 1,066.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.42 : 3,549.66 = 1,066.81 : x
2. Step 2: Convert to fraction form
   2,365.42/3,549.66 = 1,066.81/x
3. Step 3: Cross multiply
   2,365.42x = 3,549.66 × 1,066.81
4. Step 4: Simplify right side
   2,365.42x = 3,786,812.78
5. Step 5: Solve for x
   x = 3,786,812.78/2,365.42
6. Step 6: Final answer
   x = 1,600.91