Finding the Fourth Proportional to 2,131.48, 2,940.38 and 1,836.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.48 : 2,940.38 = 1,836.23 : x
2. Step 2: Convert to fraction form
   2,131.48/2,940.38 = 1,836.23/x
3. Step 3: Cross multiply
   2,131.48x = 2,940.38 × 1,836.23
4. Step 4: Simplify right side
   2,131.48x = 5,399,213.97
5. Step 5: Solve for x
   x = 5,399,213.97/2,131.48
6. Step 6: Final answer
   x = 2,533.09