Finding the Fourth Proportional to 1,979.50, 2,731.76 and 1,282.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,979.50 : 2,731.76 = 1,282.09 : x
2. Step 2: Convert to fraction form
   1,979.50/2,731.76 = 1,282.09/x
3. Step 3: Cross multiply
   1,979.50x = 2,731.76 × 1,282.09
4. Step 4: Simplify right side
   1,979.50x = 3,502,355.77
5. Step 5: Solve for x
   x = 3,502,355.77/1,979.50
6. Step 6: Final answer
   x = 1,769.31