Finding the Fourth Proportional to 2,222.18, 3,332.64 and 834.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.18 : 3,332.64 = 834.50 : x
2. Step 2: Convert to fraction form
   2,222.18/3,332.64 = 834.50/x
3. Step 3: Cross multiply
   2,222.18x = 3,332.64 × 834.50
4. Step 4: Simplify right side
   2,222.18x = 2,781,099.54
5. Step 5: Solve for x
   x = 2,781,099.54/2,222.18
6. Step 6: Final answer
   x = 1,251.52