Finding the Fourth Proportional to 2,045.37, 2,822.72 and 1,206.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.37 : 2,822.72 = 1,206.56 : x
2. Step 2: Convert to fraction form
   2,045.37/2,822.72 = 1,206.56/x
3. Step 3: Cross multiply
   2,045.37x = 2,822.72 × 1,206.56
4. Step 4: Simplify right side
   2,045.37x = 3,405,788.10
5. Step 5: Solve for x
   x = 3,405,788.10/2,045.37
6. Step 6: Final answer
   x = 1,665.12