Finding the Fourth Proportional to 1,983.27, 2,972.78 and 1,009.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.27 : 2,972.78 = 1,009.45 : x
2. Step 2: Convert to fraction form
   1,983.27/2,972.78 = 1,009.45/x
3. Step 3: Cross multiply
   1,983.27x = 2,972.78 × 1,009.45
4. Step 4: Simplify right side
   1,983.27x = 3,000,872.77
5. Step 5: Solve for x
   x = 3,000,872.77/1,983.27
6. Step 6: Final answer
   x = 1,513.09