Finding the Fourth Proportional to 2,442.32, 3,665.45 and 1,272.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.32 : 3,665.45 = 1,272.68 : x
2. Step 2: Convert to fraction form
   2,442.32/3,665.45 = 1,272.68/x
3. Step 3: Cross multiply
   2,442.32x = 3,665.45 × 1,272.68
4. Step 4: Simplify right side
   2,442.32x = 4,664,944.91
5. Step 5: Solve for x
   x = 4,664,944.91/2,442.32
6. Step 6: Final answer
   x = 1,910.05