Finding the Fourth Proportional to 2,018.58, 3,026.61 and 631.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.58 : 3,026.61 = 631.52 : x
2. Step 2: Convert to fraction form
   2,018.58/3,026.61 = 631.52/x
3. Step 3: Cross multiply
   2,018.58x = 3,026.61 × 631.52
4. Step 4: Simplify right side
   2,018.58x = 1,911,349.61
5. Step 5: Solve for x
   x = 1,911,349.61/2,018.58
6. Step 6: Final answer
   x = 946.88