Finding the Fourth Proportional to 2,499.12, 3,749.24 and 960.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.12 : 3,749.24 = 960.08 : x
2. Step 2: Convert to fraction form
   2,499.12/3,749.24 = 960.08/x
3. Step 3: Cross multiply
   2,499.12x = 3,749.24 × 960.08
4. Step 4: Simplify right side
   2,499.12x = 3,599,570.34
5. Step 5: Solve for x
   x = 3,599,570.34/2,499.12
6. Step 6: Final answer
   x = 1,440.34