Finding the Fourth Proportional to 2,206.76, 3,045.34 and 1,212.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.76 : 3,045.34 = 1,212.04 : x
2. Step 2: Convert to fraction form
   2,206.76/3,045.34 = 1,212.04/x
3. Step 3: Cross multiply
   2,206.76x = 3,045.34 × 1,212.04
4. Step 4: Simplify right side
   2,206.76x = 3,691,073.89
5. Step 5: Solve for x
   x = 3,691,073.89/2,206.76
6. Step 6: Final answer
   x = 1,672.62