Finding the Fourth Proportional to 2,562.32, 3,842.82 and 918.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,562.32 : 3,842.82 = 918.68 : x
2. Step 2: Convert to fraction form
   2,562.32/3,842.82 = 918.68/x
3. Step 3: Cross multiply
   2,562.32x = 3,842.82 × 918.68
4. Step 4: Simplify right side
   2,562.32x = 3,530,321.88
5. Step 5: Solve for x
   x = 3,530,321.88/2,562.32
6. Step 6: Final answer
   x = 1,377.78