Finding the Fourth Proportional to 2,153.50, 3,228.72 and 982.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.50 : 3,228.72 = 982.92 : x
2. Step 2: Convert to fraction form
   2,153.50/3,228.72 = 982.92/x
3. Step 3: Cross multiply
   2,153.50x = 3,228.72 × 982.92
4. Step 4: Simplify right side
   2,153.50x = 3,173,573.46
5. Step 5: Solve for x
   x = 3,173,573.46/2,153.50
6. Step 6: Final answer
   x = 1,473.68