Finding the Fourth Proportional to 1,322.42, 1,984.35 and 745.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.42 : 1,984.35 = 745.34 : x
2. Step 2: Convert to fraction form
   1,322.42/1,984.35 = 745.34/x
3. Step 3: Cross multiply
   1,322.42x = 1,984.35 × 745.34
4. Step 4: Simplify right side
   1,322.42x = 1,479,015.43
5. Step 5: Solve for x
   x = 1,479,015.43/1,322.42
6. Step 6: Final answer
   x = 1,118.42