Finding the Fourth Proportional to 1,205.02, 1,662.73 and 673.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205.02 : 1,662.73 = 673.86 : x
2. Step 2: Convert to fraction form
   1,205.02/1,662.73 = 673.86/x
3. Step 3: Cross multiply
   1,205.02x = 1,662.73 × 673.86
4. Step 4: Simplify right side
   1,205.02x = 1,120,446.23
5. Step 5: Solve for x
   x = 1,120,446.23/1,205.02
6. Step 6: Final answer
   x = 929.82