Finding the Fourth Proportional to 2,196.10, 3,290.55 and 1,828.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.10 : 3,290.55 = 1,828.90 : x
2. Step 2: Convert to fraction form
   2,196.10/3,290.55 = 1,828.90/x
3. Step 3: Cross multiply
   2,196.10x = 3,290.55 × 1,828.90
4. Step 4: Simplify right side
   2,196.10x = 6,018,086.90
5. Step 5: Solve for x
   x = 6,018,086.90/2,196.10
6. Step 6: Final answer
   x = 2,740.35