Finding the Fourth Proportional to 2,989.94, 4,484.73 and 1,115.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,989.94 : 4,484.73 = 1,115.46 : x
2. Step 2: Convert to fraction form
   2,989.94/4,484.73 = 1,115.46/x
3. Step 3: Cross multiply
   2,989.94x = 4,484.73 × 1,115.46
4. Step 4: Simplify right side
   2,989.94x = 5,002,544.31
5. Step 5: Solve for x
   x = 5,002,544.31/2,989.94
6. Step 6: Final answer
   x = 1,673.13