Finding the Fourth Proportional to 2,365.21, 3,549.71 and 1,066.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.21 : 3,549.71 = 1,066.78 : x
2. Step 2: Convert to fraction form
   2,365.21/3,549.71 = 1,066.78/x
3. Step 3: Cross multiply
   2,365.21x = 3,549.71 × 1,066.78
4. Step 4: Simplify right side
   2,365.21x = 3,786,759.63
5. Step 5: Solve for x
   x = 3,786,759.63/2,365.21
6. Step 6: Final answer
   x = 1,601.02