Finding the Fourth Proportional to 2,206.88, 3,045.48 and 1,322.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.88 : 3,045.48 = 1,322.72 : x
2. Step 2: Convert to fraction form
   2,206.88/3,045.48 = 1,322.72/x
3. Step 3: Cross multiply
   2,206.88x = 3,045.48 × 1,322.72
4. Step 4: Simplify right side
   2,206.88x = 4,028,317.31
5. Step 5: Solve for x
   x = 4,028,317.31/2,206.88
6. Step 6: Final answer
   x = 1,825.34