Finding the Fourth Proportional to 2,173.05, 3,258.21 and 922.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.05 : 3,258.21 = 922.98 : x
2. Step 2: Convert to fraction form
   2,173.05/3,258.21 = 922.98/x
3. Step 3: Cross multiply
   2,173.05x = 3,258.21 × 922.98
4. Step 4: Simplify right side
   2,173.05x = 3,007,262.67
5. Step 5: Solve for x
   x = 3,007,262.67/2,173.05
6. Step 6: Final answer
   x = 1,383.89