Finding the Fourth Proportional to 1,979.41, 2,971.41 and 1,158.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,979.41 : 2,971.41 = 1,158.28 : x
2. Step 2: Convert to fraction form
   1,979.41/2,971.41 = 1,158.28/x
3. Step 3: Cross multiply
   1,979.41x = 2,971.41 × 1,158.28
4. Step 4: Simplify right side
   1,979.41x = 3,441,724.77
5. Step 5: Solve for x
   x = 3,441,724.77/1,979.41
6. Step 6: Final answer
   x = 1,738.76