Finding the Fourth Proportional to 2,021.75, 3,032.59 and 981.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.75 : 3,032.59 = 981.57 : x
2. Step 2: Convert to fraction form
   2,021.75/3,032.59 = 981.57/x
3. Step 3: Cross multiply
   2,021.75x = 3,032.59 × 981.57
4. Step 4: Simplify right side
   2,021.75x = 2,976,699.37
5. Step 5: Solve for x
   x = 2,976,699.37/2,021.75
6. Step 6: Final answer
   x = 1,472.34