Finding the Fourth Proportional to 2,933.87, 4,401.23 and 985.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,933.87 : 4,401.23 = 985.61 : x
2. Step 2: Convert to fraction form
   2,933.87/4,401.23 = 985.61/x
3. Step 3: Cross multiply
   2,933.87x = 4,401.23 × 985.61
4. Step 4: Simplify right side
   2,933.87x = 4,337,869.37
5. Step 5: Solve for x
   x = 4,337,869.37/2,933.87
6. Step 6: Final answer
   x = 1,478.55