Finding the Fourth Proportional to 1,989.02, 2,981.98 and 892.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.02 : 2,981.98 = 892.62 : x
2. Step 2: Convert to fraction form
   1,989.02/2,981.98 = 892.62/x
3. Step 3: Cross multiply
   1,989.02x = 2,981.98 × 892.62
4. Step 4: Simplify right side
   1,989.02x = 2,661,776.10
5. Step 5: Solve for x
   x = 2,661,776.10/1,989.02
6. Step 6: Final answer
   x = 1,338.23