Finding the Fourth Proportional to 2,558.96, 3,839.52 and 1,021.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.96 : 3,839.52 = 1,021.04 : x
2. Step 2: Convert to fraction form
   2,558.96/3,839.52 = 1,021.04/x
3. Step 3: Cross multiply
   2,558.96x = 3,839.52 × 1,021.04
4. Step 4: Simplify right side
   2,558.96x = 3,920,303.50
5. Step 5: Solve for x
   x = 3,920,303.50/2,558.96
6. Step 6: Final answer
   x = 1,531.99