Finding the Fourth Proportional to 2,670.92, 3,686.52 and 1,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.92 : 3,686.52 = 1,622.72 : x
2. Step 2: Convert to fraction form
   2,670.92/3,686.52 = 1,622.72/x
3. Step 3: Cross multiply
   2,670.92x = 3,686.52 × 1,622.72
4. Step 4: Simplify right side
   2,670.92x = 5,982,189.73
5. Step 5: Solve for x
   x = 5,982,189.73/2,670.92
6. Step 6: Final answer
   x = 2,239.75