Finding the Fourth Proportional to 2,412.25, 3,634.59 and 2,181.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.25 : 3,634.59 = 2,181.40 : x
2. Step 2: Convert to fraction form
   2,412.25/3,634.59 = 2,181.40/x
3. Step 3: Cross multiply
   2,412.25x = 3,634.59 × 2,181.40
4. Step 4: Simplify right side
   2,412.25x = 7,928,481.45
5. Step 5: Solve for x
   x = 7,928,481.45/2,412.25
6. Step 6: Final answer
   x = 3,286.76