Finding the Fourth Proportional to 2,074.51, 3,111.43 and 841.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.51 : 3,111.43 = 841.87 : x
2. Step 2: Convert to fraction form
   2,074.51/3,111.43 = 841.87/x
3. Step 3: Cross multiply
   2,074.51x = 3,111.43 × 841.87
4. Step 4: Simplify right side
   2,074.51x = 2,619,419.57
5. Step 5: Solve for x
   x = 2,619,419.57/2,074.51
6. Step 6: Final answer
   x = 1,262.67