Finding the Fourth Proportional to 2,171.90, 3,249.48 and 1,826.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.90 : 3,249.48 = 1,826.30 : x
2. Step 2: Convert to fraction form
   2,171.90/3,249.48 = 1,826.30/x
3. Step 3: Cross multiply
   2,171.90x = 3,249.48 × 1,826.30
4. Step 4: Simplify right side
   2,171.90x = 5,934,525.32
5. Step 5: Solve for x
   x = 5,934,525.32/2,171.90
6. Step 6: Final answer
   x = 2,732.41