Finding the Fourth Proportional to 2,485.35, 3,727.53 and 841.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.35 : 3,727.53 = 841.86 : x
2. Step 2: Convert to fraction form
   2,485.35/3,727.53 = 841.86/x
3. Step 3: Cross multiply
   2,485.35x = 3,727.53 × 841.86
4. Step 4: Simplify right side
   2,485.35x = 3,138,058.41
5. Step 5: Solve for x
   x = 3,138,058.41/2,485.35
6. Step 6: Final answer
   x = 1,262.62