Finding the Fourth Proportional to 1,222.39, 1,833.82 and 555.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.39 : 1,833.82 = 555.34 : x
2. Step 2: Convert to fraction form
   1,222.39/1,833.82 = 555.34/x
3. Step 3: Cross multiply
   1,222.39x = 1,833.82 × 555.34
4. Step 4: Simplify right side
   1,222.39x = 1,018,385.41
5. Step 5: Solve for x
   x = 1,018,385.41/1,222.39
6. Step 6: Final answer
   x = 833.11