Finding the Fourth Proportional to 2,575.34, 3,865.05 and 1,015.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.34 : 3,865.05 = 1,015.73 : x
2. Step 2: Convert to fraction form
   2,575.34/3,865.05 = 1,015.73/x
3. Step 3: Cross multiply
   2,575.34x = 3,865.05 × 1,015.73
4. Step 4: Simplify right side
   2,575.34x = 3,925,856.90
5. Step 5: Solve for x
   x = 3,925,856.90/2,575.34
6. Step 6: Final answer
   x = 1,524.40