Finding the Fourth Proportional to 2,436.57, 3,655.19 and 1,120.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.57 : 3,655.19 = 1,120.73 : x
2. Step 2: Convert to fraction form
   2,436.57/3,655.19 = 1,120.73/x
3. Step 3: Cross multiply
   2,436.57x = 3,655.19 × 1,120.73
4. Step 4: Simplify right side
   2,436.57x = 4,096,465.61
5. Step 5: Solve for x
   x = 4,096,465.61/2,436.57
6. Step 6: Final answer
   x = 1,681.24