Finding the Fourth Proportional to 1,993.76, 2,989.20 and 1,019.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.76 : 2,989.20 = 1,019.12 : x
2. Step 2: Convert to fraction form
   1,993.76/2,989.20 = 1,019.12/x
3. Step 3: Cross multiply
   1,993.76x = 2,989.20 × 1,019.12
4. Step 4: Simplify right side
   1,993.76x = 3,046,353.50
5. Step 5: Solve for x
   x = 3,046,353.50/1,993.76
6. Step 6: Final answer
   x = 1,527.94