Finding the Fourth Proportional to 2,407.57, 3,610.64 and 1,020.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.57 : 3,610.64 = 1,020.89 : x
2. Step 2: Convert to fraction form
   2,407.57/3,610.64 = 1,020.89/x
3. Step 3: Cross multiply
   2,407.57x = 3,610.64 × 1,020.89
4. Step 4: Simplify right side
   2,407.57x = 3,686,046.94
5. Step 5: Solve for x
   x = 3,686,046.94/2,407.57
6. Step 6: Final answer
   x = 1,531.02