Finding the Fourth Proportional to 2,446.53, 3,669.86 and 985.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,446.53 : 3,669.86 = 985.56 : x
2. Step 2: Convert to fraction form
   2,446.53/3,669.86 = 985.56/x
3. Step 3: Cross multiply
   2,446.53x = 3,669.86 × 985.56
4. Step 4: Simplify right side
   2,446.53x = 3,616,867.22
5. Step 5: Solve for x
   x = 3,616,867.22/2,446.53
6. Step 6: Final answer
   x = 1,478.37