Finding the Fourth Proportional to 2,086.94, 2,873.40 and 1,587.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.94 : 2,873.40 = 1,587.98 : x
2. Step 2: Convert to fraction form
   2,086.94/2,873.40 = 1,587.98/x
3. Step 3: Cross multiply
   2,086.94x = 2,873.40 × 1,587.98
4. Step 4: Simplify right side
   2,086.94x = 4,562,901.73
5. Step 5: Solve for x
   x = 4,562,901.73/2,086.94
6. Step 6: Final answer
   x = 2,186.41