Finding the Fourth Proportional to 2,447.11, 3,671.27 and 987.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.11 : 3,671.27 = 987.29 : x
2. Step 2: Convert to fraction form
   2,447.11/3,671.27 = 987.29/x
3. Step 3: Cross multiply
   2,447.11x = 3,671.27 × 987.29
4. Step 4: Simplify right side
   2,447.11x = 3,624,607.89
5. Step 5: Solve for x
   x = 3,624,607.89/2,447.11
6. Step 6: Final answer
   x = 1,481.18