Finding the Fourth Proportional to 2,308.82, 3,465.54 and 1,215.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.82 : 3,465.54 = 1,215.49 : x
2. Step 2: Convert to fraction form
   2,308.82/3,465.54 = 1,215.49/x
3. Step 3: Cross multiply
   2,308.82x = 3,465.54 × 1,215.49
4. Step 4: Simplify right side
   2,308.82x = 4,212,329.21
5. Step 5: Solve for x
   x = 4,212,329.21/2,308.82
6. Step 6: Final answer
   x = 1,824.45