Finding the Fourth Proportional to 3,890.06, 5,832.86 and 1,811.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.06 : 5,832.86 = 1,811.37 : x
2. Step 2: Convert to fraction form
   3,890.06/5,832.86 = 1,811.37/x
3. Step 3: Cross multiply
   3,890.06x = 5,832.86 × 1,811.37
4. Step 4: Simplify right side
   3,890.06x = 10,565,458.56
5. Step 5: Solve for x
   x = 10,565,458.56/3,890.06
6. Step 6: Final answer
   x = 2,716.02