Finding the Fourth Proportional to 1,233.87, 1,702.74 and 674.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.87 : 1,702.74 = 674.34 : x
2. Step 2: Convert to fraction form
   1,233.87/1,702.74 = 674.34/x
3. Step 3: Cross multiply
   1,233.87x = 1,702.74 × 674.34
4. Step 4: Simplify right side
   1,233.87x = 1,148,221.86
5. Step 5: Solve for x
   x = 1,148,221.86/1,233.87
6. Step 6: Final answer
   x = 930.59