Finding the Fourth Proportional to 2,212.50, 3,318.83 and 1,116.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.50 : 3,318.83 = 1,116.27 : x
2. Step 2: Convert to fraction form
   2,212.50/3,318.83 = 1,116.27/x
3. Step 3: Cross multiply
   2,212.50x = 3,318.83 × 1,116.27
4. Step 4: Simplify right side
   2,212.50x = 3,704,704.78
5. Step 5: Solve for x
   x = 3,704,704.78/2,212.50
6. Step 6: Final answer
   x = 1,674.44