Finding the Fourth Proportional to 1,989.83, 2,983.52 and 673.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.83 : 2,983.52 = 673.46 : x
2. Step 2: Convert to fraction form
   1,989.83/2,983.52 = 673.46/x
3. Step 3: Cross multiply
   1,989.83x = 2,983.52 × 673.46
4. Step 4: Simplify right side
   1,989.83x = 2,009,281.38
5. Step 5: Solve for x
   x = 2,009,281.38/1,989.83
6. Step 6: Final answer
   x = 1,009.78