Finding the Fourth Proportional to 1,871.58, 2,582.76 and 1,086.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.58 : 2,582.76 = 1,086.06 : x
2. Step 2: Convert to fraction form
   1,871.58/2,582.76 = 1,086.06/x
3. Step 3: Cross multiply
   1,871.58x = 2,582.76 × 1,086.06
4. Step 4: Simplify right side
   1,871.58x = 2,805,032.33
5. Step 5: Solve for x
   x = 2,805,032.33/1,871.58
6. Step 6: Final answer
   x = 1,498.75