Finding the Fourth Proportional to 2,624.40, 3,621.67 and 1,445.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.40 : 3,621.67 = 1,445.47 : x
2. Step 2: Convert to fraction form
   2,624.40/3,621.67 = 1,445.47/x
3. Step 3: Cross multiply
   2,624.40x = 3,621.67 × 1,445.47
4. Step 4: Simplify right side
   2,624.40x = 5,235,020.78
5. Step 5: Solve for x
   x = 5,235,020.78/2,624.40
6. Step 6: Final answer
   x = 1,994.75