Finding the Fourth Proportional to 2,143.82, 2,961.75 and 1,832.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.82 : 2,961.75 = 1,832.31 : x
2. Step 2: Convert to fraction form
   2,143.82/2,961.75 = 1,832.31/x
3. Step 3: Cross multiply
   2,143.82x = 2,961.75 × 1,832.31
4. Step 4: Simplify right side
   2,143.82x = 5,426,844.14
5. Step 5: Solve for x
   x = 5,426,844.14/2,143.82
6. Step 6: Final answer
   x = 2,531.39