Finding the Fourth Proportional to 2,444.81, 3,667.82 and 1,212.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,444.81 : 3,667.82 = 1,212.80 : x
2. Step 2: Convert to fraction form
   2,444.81/3,667.82 = 1,212.80/x
3. Step 3: Cross multiply
   2,444.81x = 3,667.82 × 1,212.80
4. Step 4: Simplify right side
   2,444.81x = 4,448,307.69
5. Step 5: Solve for x
   x = 4,448,307.69/2,444.81
6. Step 6: Final answer
   x = 1,819.49