Finding the Fourth Proportional to 1,043.89, 1,564.92 and 673.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.89 : 1,564.92 = 673.92 : x
2. Step 2: Convert to fraction form
   1,043.89/1,564.92 = 673.92/x
3. Step 3: Cross multiply
   1,043.89x = 1,564.92 × 673.92
4. Step 4: Simplify right side
   1,043.89x = 1,054,630.89
5. Step 5: Solve for x
   x = 1,054,630.89/1,043.89
6. Step 6: Final answer
   x = 1,010.29