Finding the Fourth Proportional to 2,073.98, 3,110.69 and 841.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.98 : 3,110.69 = 841.40 : x
2. Step 2: Convert to fraction form
   2,073.98/3,110.69 = 841.40/x
3. Step 3: Cross multiply
   2,073.98x = 3,110.69 × 841.40
4. Step 4: Simplify right side
   2,073.98x = 2,617,314.81
5. Step 5: Solve for x
   x = 2,617,314.81/2,073.98
6. Step 6: Final answer
   x = 1,261.98