Finding the Fourth Proportional to 1,979.39, 2,967.72 and 1,199.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,979.39 : 2,967.72 = 1,199.58 : x
2. Step 2: Convert to fraction form
   1,979.39/2,967.72 = 1,199.58/x
3. Step 3: Cross multiply
   1,979.39x = 2,967.72 × 1,199.58
4. Step 4: Simplify right side
   1,979.39x = 3,560,017.56
5. Step 5: Solve for x
   x = 3,560,017.56/1,979.39
6. Step 6: Final answer
   x = 1,798.55