Finding the Fourth Proportional to 2,372.72, 3,555.24 and 1,445.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.72 : 3,555.24 = 1,445.47 : x
2. Step 2: Convert to fraction form
   2,372.72/3,555.24 = 1,445.47/x
3. Step 3: Cross multiply
   2,372.72x = 3,555.24 × 1,445.47
4. Step 4: Simplify right side
   2,372.72x = 5,138,996.58
5. Step 5: Solve for x
   x = 5,138,996.58/2,372.72
6. Step 6: Final answer
   x = 2,165.86