Finding the Fourth Proportional to 1,743.16, 2,399.34 and 1,445.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.16 : 2,399.34 = 1,445.08 : x
2. Step 2: Convert to fraction form
   1,743.16/2,399.34 = 1,445.08/x
3. Step 3: Cross multiply
   1,743.16x = 2,399.34 × 1,445.08
4. Step 4: Simplify right side
   1,743.16x = 3,467,238.25
5. Step 5: Solve for x
   x = 3,467,238.25/1,743.16
6. Step 6: Final answer
   x = 1,989.05