Finding the Fourth Proportional to 1,864.77, 2,573.42 and 1,025.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.77 : 2,573.42 = 1,025.49 : x
2. Step 2: Convert to fraction form
   1,864.77/2,573.42 = 1,025.49/x
3. Step 3: Cross multiply
   1,864.77x = 2,573.42 × 1,025.49
4. Step 4: Simplify right side
   1,864.77x = 2,639,016.48
5. Step 5: Solve for x
   x = 2,639,016.48/1,864.77
6. Step 6: Final answer
   x = 1,415.20