Finding the Fourth Proportional to 2,027.56, 3,042.84 and 987.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,027.56 : 3,042.84 = 987.40 : x
2. Step 2: Convert to fraction form
   2,027.56/3,042.84 = 987.40/x
3. Step 3: Cross multiply
   2,027.56x = 3,042.84 × 987.40
4. Step 4: Simplify right side
   2,027.56x = 3,004,500.22
5. Step 5: Solve for x
   x = 3,004,500.22/2,027.56
6. Step 6: Final answer
   x = 1,481.83