Finding the Fourth Proportional to 2,527.82, 3,791.85 and 989.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,527.82 : 3,791.85 = 989.18 : x
2. Step 2: Convert to fraction form
   2,527.82/3,791.85 = 989.18/x
3. Step 3: Cross multiply
   2,527.82x = 3,791.85 × 989.18
4. Step 4: Simplify right side
   2,527.82x = 3,750,822.18
5. Step 5: Solve for x
   x = 3,750,822.18/2,527.82
6. Step 6: Final answer
   x = 1,483.82