Finding the Fourth Proportional to 2,075.81, 2,863.83 and 1,236.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.81 : 2,863.83 = 1,236.55 : x
2. Step 2: Convert to fraction form
   2,075.81/2,863.83 = 1,236.55/x
3. Step 3: Cross multiply
   2,075.81x = 2,863.83 × 1,236.55
4. Step 4: Simplify right side
   2,075.81x = 3,541,261.83
5. Step 5: Solve for x
   x = 3,541,261.83/2,075.81
6. Step 6: Final answer
   x = 1,705.96