Finding the Fourth Proportional to 2,665.35, 3,998.12 and 1,020.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.35 : 3,998.12 = 1,020.96 : x
2. Step 2: Convert to fraction form
   2,665.35/3,998.12 = 1,020.96/x
3. Step 3: Cross multiply
   2,665.35x = 3,998.12 × 1,020.96
4. Step 4: Simplify right side
   2,665.35x = 4,081,915.49
5. Step 5: Solve for x
   x = 4,081,915.49/2,665.35
6. Step 6: Final answer
   x = 1,531.47