Finding the Fourth Proportional to 2,144.02, 2,958.33 and 1,212.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.02 : 2,958.33 = 1,212.34 : x
2. Step 2: Convert to fraction form
   2,144.02/2,958.33 = 1,212.34/x
3. Step 3: Cross multiply
   2,144.02x = 2,958.33 × 1,212.34
4. Step 4: Simplify right side
   2,144.02x = 3,586,501.79
5. Step 5: Solve for x
   x = 3,586,501.79/2,144.02
6. Step 6: Final answer
   x = 1,672.79