Finding the Fourth Proportional to 2,018.50, 3,027.84 and 631.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.50 : 3,027.84 = 631.83 : x
2. Step 2: Convert to fraction form
   2,018.50/3,027.84 = 631.83/x
3. Step 3: Cross multiply
   2,018.50x = 3,027.84 × 631.83
4. Step 4: Simplify right side
   2,018.50x = 1,913,080.15
5. Step 5: Solve for x
   x = 1,913,080.15/2,018.50
6. Step 6: Final answer
   x = 947.77