Finding the Fourth Proportional to 1,871.52, 2,582.82 and 1,085.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.52 : 2,582.82 = 1,085.64 : x
2. Step 2: Convert to fraction form
   1,871.52/2,582.82 = 1,085.64/x
3. Step 3: Cross multiply
   1,871.52x = 2,582.82 × 1,085.64
4. Step 4: Simplify right side
   1,871.52x = 2,804,012.70
5. Step 5: Solve for x
   x = 2,804,012.70/1,871.52
6. Step 6: Final answer
   x = 1,498.25