Finding the Fourth Proportional to 1,871.82, 2,583.66 and 1,086.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.82 : 2,583.66 = 1,086.18 : x
2. Step 2: Convert to fraction form
   1,871.82/2,583.66 = 1,086.18/x
3. Step 3: Cross multiply
   1,871.82x = 2,583.66 × 1,086.18
4. Step 4: Simplify right side
   1,871.82x = 2,806,319.82
5. Step 5: Solve for x
   x = 2,806,319.82/1,871.82
6. Step 6: Final answer
   x = 1,499.25