Finding the Fourth Proportional to 2,078.34, 2,864.15 and 1,487.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.34 : 2,864.15 = 1,487.85 : x
2. Step 2: Convert to fraction form
   2,078.34/2,864.15 = 1,487.85/x
3. Step 3: Cross multiply
   2,078.34x = 2,864.15 × 1,487.85
4. Step 4: Simplify right side
   2,078.34x = 4,261,403.82
5. Step 5: Solve for x
   x = 4,261,403.82/2,078.34
6. Step 6: Final answer
   x = 2,050.39