Finding the Fourth Proportional to 1,979.48, 2,971.50 and 1,158.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,979.48 : 2,971.50 = 1,158.33 : x
2. Step 2: Convert to fraction form
   1,979.48/2,971.50 = 1,158.33/x
3. Step 3: Cross multiply
   1,979.48x = 2,971.50 × 1,158.33
4. Step 4: Simplify right side
   1,979.48x = 3,441,977.60
5. Step 5: Solve for x
   x = 3,441,977.60/1,979.48
6. Step 6: Final answer
   x = 1,738.83