Finding the Fourth Proportional to 2,407.94, 3,611.18 and 1,021.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.94 : 3,611.18 = 1,021.25 : x
2. Step 2: Convert to fraction form
   2,407.94/3,611.18 = 1,021.25/x
3. Step 3: Cross multiply
   2,407.94x = 3,611.18 × 1,021.25
4. Step 4: Simplify right side
   2,407.94x = 3,687,912.47
5. Step 5: Solve for x
   x = 3,687,912.47/2,407.94
6. Step 6: Final answer
   x = 1,531.56