Finding the Fourth Proportional to 1,018.98, 1,404.57 and 738.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.98 : 1,404.57 = 738.84 : x
2. Step 2: Convert to fraction form
   1,018.98/1,404.57 = 738.84/x
3. Step 3: Cross multiply
   1,018.98x = 1,404.57 × 738.84
4. Step 4: Simplify right side
   1,018.98x = 1,037,752.50
5. Step 5: Solve for x
   x = 1,037,752.50/1,018.98
6. Step 6: Final answer
   x = 1,018.42