Finding the Fourth Proportional to 2,238.93, 3,362.58 and 1,145.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.93 : 3,362.58 = 1,145.43 : x
2. Step 2: Convert to fraction form
   2,238.93/3,362.58 = 1,145.43/x
3. Step 3: Cross multiply
   2,238.93x = 3,362.58 × 1,145.43
4. Step 4: Simplify right side
   2,238.93x = 3,851,600.01
5. Step 5: Solve for x
   x = 3,851,600.01/2,238.93
6. Step 6: Final answer
   x = 1,720.29