Finding the Fourth Proportional to 2,223.31, 3,333.99 and 835.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.31 : 3,333.99 = 835.67 : x
2. Step 2: Convert to fraction form
   2,223.31/3,333.99 = 835.67/x
3. Step 3: Cross multiply
   2,223.31x = 3,333.99 × 835.67
4. Step 4: Simplify right side
   2,223.31x = 2,786,123.76
5. Step 5: Solve for x
   x = 2,786,123.76/2,223.31
6. Step 6: Final answer
   x = 1,253.14