Finding the Fourth Proportional to 2,483.21, 3,725.27 and 1,021.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.21 : 3,725.27 = 1,021.57 : x
2. Step 2: Convert to fraction form
   2,483.21/3,725.27 = 1,021.57/x
3. Step 3: Cross multiply
   2,483.21x = 3,725.27 × 1,021.57
4. Step 4: Simplify right side
   2,483.21x = 3,805,617.31
5. Step 5: Solve for x
   x = 3,805,617.31/2,483.21
6. Step 6: Final answer
   x = 1,532.54