Finding the Fourth Proportional to 1,645.72, 2,447.42 and 1,593.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.72 : 2,447.42 = 1,593.81 : x
2. Step 2: Convert to fraction form
   1,645.72/2,447.42 = 1,593.81/x
3. Step 3: Cross multiply
   1,645.72x = 2,447.42 × 1,593.81
4. Step 4: Simplify right side
   1,645.72x = 3,900,714.50
5. Step 5: Solve for x
   x = 3,900,714.50/1,645.72
6. Step 6: Final answer
   x = 2,370.22