Finding the Fourth Proportional to 2,015.76, 3,025.24 and 1,042.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.76 : 3,025.24 = 1,042.14 : x
2. Step 2: Convert to fraction form
   2,015.76/3,025.24 = 1,042.14/x
3. Step 3: Cross multiply
   2,015.76x = 3,025.24 × 1,042.14
4. Step 4: Simplify right side
   2,015.76x = 3,152,723.61
5. Step 5: Solve for x
   x = 3,152,723.61/2,015.76
6. Step 6: Final answer
   x = 1,564.04