Finding the Fourth Proportional to 2,074.82, 3,110.54 and 842.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.82 : 3,110.54 = 842.81 : x
2. Step 2: Convert to fraction form
   2,074.82/3,110.54 = 842.81/x
3. Step 3: Cross multiply
   2,074.82x = 3,110.54 × 842.81
4. Step 4: Simplify right side
   2,074.82x = 2,621,574.45
5. Step 5: Solve for x
   x = 2,621,574.45/2,074.82
6. Step 6: Final answer
   x = 1,263.52