Finding the Fourth Proportional to 1,978.24, 2,729.60 and 1,150.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.24 : 2,729.60 = 1,150.08 : x
2. Step 2: Convert to fraction form
   1,978.24/2,729.60 = 1,150.08/x
3. Step 3: Cross multiply
   1,978.24x = 2,729.60 × 1,150.08
4. Step 4: Simplify right side
   1,978.24x = 3,139,258.37
5. Step 5: Solve for x
   x = 3,139,258.37/1,978.24
6. Step 6: Final answer
   x = 1,586.89