Finding the Fourth Proportional to 1,871.14, 2,581.98 and 1,085.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.14 : 2,581.98 = 1,085.05 : x
2. Step 2: Convert to fraction form
   1,871.14/2,581.98 = 1,085.05/x
3. Step 3: Cross multiply
   1,871.14x = 2,581.98 × 1,085.05
4. Step 4: Simplify right side
   1,871.14x = 2,801,577.40
5. Step 5: Solve for x
   x = 2,801,577.40/1,871.14
6. Step 6: Final answer
   x = 1,497.26