Finding the Fourth Proportional to 3,758.54, 5,637.89 and 985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.54 : 5,637.89 = 985.30 : x
2. Step 2: Convert to fraction form
   3,758.54/5,637.89 = 985.30/x
3. Step 3: Cross multiply
   3,758.54x = 5,637.89 × 985.30
4. Step 4: Simplify right side
   3,758.54x = 5,555,013.02
5. Step 5: Solve for x
   x = 5,555,013.02/3,758.54
6. Step 6: Final answer
   x = 1,477.97