Finding the Fourth Proportional to 1,871.74, 2,583.12 and 1,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.74 : 2,583.12 = 1,085.50 : x
2. Step 2: Convert to fraction form
   1,871.74/2,583.12 = 1,085.50/x
3. Step 3: Cross multiply
   1,871.74x = 2,583.12 × 1,085.50
4. Step 4: Simplify right side
   1,871.74x = 2,803,976.76
5. Step 5: Solve for x
   x = 2,803,976.76/1,871.74
6. Step 6: Final answer
   x = 1,498.06