Finding the Fourth Proportional to 2,206.76, 3,045.24 and 1,212.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.76 : 3,045.24 = 1,212.02 : x
2. Step 2: Convert to fraction form
   2,206.76/3,045.24 = 1,212.02/x
3. Step 3: Cross multiply
   2,206.76x = 3,045.24 × 1,212.02
4. Step 4: Simplify right side
   2,206.76x = 3,690,891.78
5. Step 5: Solve for x
   x = 3,690,891.78/2,206.76
6. Step 6: Final answer
   x = 1,672.54