Finding the Fourth Proportional to 2,617.25, 3,922.30 and 1,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.25 : 3,922.30 = 1,445.50 : x
2. Step 2: Convert to fraction form
   2,617.25/3,922.30 = 1,445.50/x
3. Step 3: Cross multiply
   2,617.25x = 3,922.30 × 1,445.50
4. Step 4: Simplify right side
   2,617.25x = 5,669,684.65
5. Step 5: Solve for x
   x = 5,669,684.65/2,617.25
6. Step 6: Final answer
   x = 2,166.28