Finding the Fourth Proportional to 2,020.89, 3,029.35 and 851.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.89 : 3,029.35 = 851.23 : x
2. Step 2: Convert to fraction form
   2,020.89/3,029.35 = 851.23/x
3. Step 3: Cross multiply
   2,020.89x = 3,029.35 × 851.23
4. Step 4: Simplify right side
   2,020.89x = 2,578,663.90
5. Step 5: Solve for x
   x = 2,578,663.90/2,020.89
6. Step 6: Final answer
   x = 1,276.00