Finding the Fourth Proportional to 3,559.87, 4,911.78 and 2,066.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,559.87 : 4,911.78 = 2,066.92 : x
2. Step 2: Convert to fraction form
   3,559.87/4,911.78 = 2,066.92/x
3. Step 3: Cross multiply
   3,559.87x = 4,911.78 × 2,066.92
4. Step 4: Simplify right side
   3,559.87x = 10,152,256.32
5. Step 5: Solve for x
   x = 10,152,256.32/3,559.87
6. Step 6: Final answer
   x = 2,851.86