Finding the Fourth Proportional to 1,979.84, 2,953.69 and 1,783

Step by Step Solution

1. Step 1: Write the proportion equation
   1,979.84 : 2,953.69 = 1,783 : x
2. Step 2: Convert to fraction form
   1,979.84/2,953.69 = 1,783/x
3. Step 3: Cross multiply
   1,979.84x = 2,953.69 × 1,783
4. Step 4: Simplify right side
   1,979.84x = 5,266,429.27
5. Step 5: Solve for x
   x = 5,266,429.27/1,979.84
6. Step 6: Final answer
   x = 2,660.03