Finding the Fourth Proportional to 1,234.83, 1,850.76 and 618.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,234.83 : 1,850.76 = 618.69 : x
2. Step 2: Convert to fraction form
   1,234.83/1,850.76 = 618.69/x
3. Step 3: Cross multiply
   1,234.83x = 1,850.76 × 618.69
4. Step 4: Simplify right side
   1,234.83x = 1,145,046.70
5. Step 5: Solve for x
   x = 1,145,046.70/1,234.83
6. Step 6: Final answer
   x = 927.29