Finding the Fourth Proportional to 2,836.27, 4,253.83 and 987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,836.27 : 4,253.83 = 987.34 : x
2. Step 2: Convert to fraction form
   2,836.27/4,253.83 = 987.34/x
3. Step 3: Cross multiply
   2,836.27x = 4,253.83 × 987.34
4. Step 4: Simplify right side
   2,836.27x = 4,199,972.77
5. Step 5: Solve for x
   x = 4,199,972.77/2,836.27
6. Step 6: Final answer
   x = 1,480.81