Finding the Fourth Proportional to 1,483.32, 2,222.37 and 989.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.32 : 2,222.37 = 989.46 : x
2. Step 2: Convert to fraction form
   1,483.32/2,222.37 = 989.46/x
3. Step 3: Cross multiply
   1,483.32x = 2,222.37 × 989.46
4. Step 4: Simplify right side
   1,483.32x = 2,198,946.22
5. Step 5: Solve for x
   x = 2,198,946.22/1,483.32
6. Step 6: Final answer
   x = 1,482.45