Finding the Fourth Proportional to 2,610.72, 3,602.24 and 2,020.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.72 : 3,602.24 = 2,020.48 : x
2. Step 2: Convert to fraction form
   2,610.72/3,602.24 = 2,020.48/x
3. Step 3: Cross multiply
   2,610.72x = 3,602.24 × 2,020.48
4. Step 4: Simplify right side
   2,610.72x = 7,278,253.88
5. Step 5: Solve for x
   x = 7,278,253.88/2,610.72
6. Step 6: Final answer
   x = 2,787.83