Finding the Fourth Proportional to 2,442.45, 3,665.97 and 1,345.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.45 : 3,665.97 = 1,345.31 : x
2. Step 2: Convert to fraction form
   2,442.45/3,665.97 = 1,345.31/x
3. Step 3: Cross multiply
   2,442.45x = 3,665.97 × 1,345.31
4. Step 4: Simplify right side
   2,442.45x = 4,931,866.10
5. Step 5: Solve for x
   x = 4,931,866.10/2,442.45
6. Step 6: Final answer
   x = 2,019.23