Finding the Fourth Proportional to 1,222.35, 1,833.83 and 356.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.35 : 1,833.83 = 356.67 : x
2. Step 2: Convert to fraction form
   1,222.35/1,833.83 = 356.67/x
3. Step 3: Cross multiply
   1,222.35x = 1,833.83 × 356.67
4. Step 4: Simplify right side
   1,222.35x = 654,072.15
5. Step 5: Solve for x
   x = 654,072.15/1,222.35
6. Step 6: Final answer
   x = 535.09