Finding the Fourth Proportional to 1,233.30, 1,701.94 and 673.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.30 : 1,701.94 = 673.78 : x
2. Step 2: Convert to fraction form
   1,233.30/1,701.94 = 673.78/x
3. Step 3: Cross multiply
   1,233.30x = 1,701.94 × 673.78
4. Step 4: Simplify right side
   1,233.30x = 1,146,724.62
5. Step 5: Solve for x
   x = 1,146,724.62/1,233.30
6. Step 6: Final answer
   x = 929.80