Finding the Fourth Proportional to 1,989.46, 2,981.94 and 1,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.46 : 2,981.94 = 1,013.50 : x
2. Step 2: Convert to fraction form
   1,989.46/2,981.94 = 1,013.50/x
3. Step 3: Cross multiply
   1,989.46x = 2,981.94 × 1,013.50
4. Step 4: Simplify right side
   1,989.46x = 3,022,196.19
5. Step 5: Solve for x
   x = 3,022,196.19/1,989.46
6. Step 6: Final answer
   x = 1,519.10