Finding the Fourth Proportional to 2,081.16, 3,119.04 and 985.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.16 : 3,119.04 = 985.86 : x
2. Step 2: Convert to fraction form
   2,081.16/3,119.04 = 985.86/x
3. Step 3: Cross multiply
   2,081.16x = 3,119.04 × 985.86
4. Step 4: Simplify right side
   2,081.16x = 3,074,936.77
5. Step 5: Solve for x
   x = 3,074,936.77/2,081.16
6. Step 6: Final answer
   x = 1,477.51