Finding the Fourth Proportional to 2,960.53, 4,439.89 and 1,228.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,960.53 : 4,439.89 = 1,228.75 : x
2. Step 2: Convert to fraction form
   2,960.53/4,439.89 = 1,228.75/x
3. Step 3: Cross multiply
   2,960.53x = 4,439.89 × 1,228.75
4. Step 4: Simplify right side
   2,960.53x = 5,455,514.84
5. Step 5: Solve for x
   x = 5,455,514.84/2,960.53
6. Step 6: Final answer
   x = 1,842.75