Finding the Fourth Proportional to 2,415.49, 3,616.72 and 1,258.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.49 : 3,616.72 = 1,258.81 : x
2. Step 2: Convert to fraction form
   2,415.49/3,616.72 = 1,258.81/x
3. Step 3: Cross multiply
   2,415.49x = 3,616.72 × 1,258.81
4. Step 4: Simplify right side
   2,415.49x = 4,552,751.11
5. Step 5: Solve for x
   x = 4,552,751.11/2,415.49
6. Step 6: Final answer
   x = 1,884.82