Finding the Fourth Proportional to 2,447.56, 3,667.68 and 985.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.56 : 3,667.68 = 985.91 : x
2. Step 2: Convert to fraction form
   2,447.56/3,667.68 = 985.91/x
3. Step 3: Cross multiply
   2,447.56x = 3,667.68 × 985.91
4. Step 4: Simplify right side
   2,447.56x = 3,616,002.39
5. Step 5: Solve for x
   x = 3,616,002.39/2,447.56
6. Step 6: Final answer
   x = 1,477.39