Finding the Fourth Proportional to 2,212.92, 3,320.14 and 1,116.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.92 : 3,320.14 = 1,116.38 : x
2. Step 2: Convert to fraction form
   2,212.92/3,320.14 = 1,116.38/x
3. Step 3: Cross multiply
   2,212.92x = 3,320.14 × 1,116.38
4. Step 4: Simplify right side
   2,212.92x = 3,706,537.89
5. Step 5: Solve for x
   x = 3,706,537.89/2,212.92
6. Step 6: Final answer
   x = 1,674.95