Finding the Fourth Proportional to 2,309.05, 3,187.83 and 1,836.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.05 : 3,187.83 = 1,836.28 : x
2. Step 2: Convert to fraction form
   2,309.05/3,187.83 = 1,836.28/x
3. Step 3: Cross multiply
   2,309.05x = 3,187.83 × 1,836.28
4. Step 4: Simplify right side
   2,309.05x = 5,853,748.47
5. Step 5: Solve for x
   x = 5,853,748.47/2,309.05
6. Step 6: Final answer
   x = 2,535.13