Finding the Fourth Proportional to 3,757.76, 5,647.59 and 1,811.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,757.76 : 5,647.59 = 1,811.33 : x
2. Step 2: Convert to fraction form
   3,757.76/5,647.59 = 1,811.33/x
3. Step 3: Cross multiply
   3,757.76x = 5,647.59 × 1,811.33
4. Step 4: Simplify right side
   3,757.76x = 10,229,642.14
5. Step 5: Solve for x
   x = 10,229,642.14/3,757.76
6. Step 6: Final answer
   x = 2,722.27