Finding the Fourth Proportional to 1,983.36, 2,976.72 and 1,106.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.36 : 2,976.72 = 1,106.71 : x
2. Step 2: Convert to fraction form
   1,983.36/2,976.72 = 1,106.71/x
3. Step 3: Cross multiply
   1,983.36x = 2,976.72 × 1,106.71
4. Step 4: Simplify right side
   1,983.36x = 3,294,365.79
5. Step 5: Solve for x
   x = 3,294,365.79/1,983.36
6. Step 6: Final answer
   x = 1,661.00