Finding the Fourth Proportional to 1,448.42, 2,173.38 and 717.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.42 : 2,173.38 = 717.98 : x
2. Step 2: Convert to fraction form
   1,448.42/2,173.38 = 717.98/x
3. Step 3: Cross multiply
   1,448.42x = 2,173.38 × 717.98
4. Step 4: Simplify right side
   1,448.42x = 1,560,443.37
5. Step 5: Solve for x
   x = 1,560,443.37/1,448.42
6. Step 6: Final answer
   x = 1,077.34