Finding the Fourth Proportional to 2,040.42, 3,061.16 and 869.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.42 : 3,061.16 = 869.84 : x
2. Step 2: Convert to fraction form
   2,040.42/3,061.16 = 869.84/x
3. Step 3: Cross multiply
   2,040.42x = 3,061.16 × 869.84
4. Step 4: Simplify right side
   2,040.42x = 2,662,717.76
5. Step 5: Solve for x
   x = 2,662,717.76/2,040.42
6. Step 6: Final answer
   x = 1,304.98