Finding the Fourth Proportional to 1,025.47, 1,415.25 and 605.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.47 : 1,415.25 = 605.96 : x
2. Step 2: Convert to fraction form
   1,025.47/1,415.25 = 605.96/x
3. Step 3: Cross multiply
   1,025.47x = 1,415.25 × 605.96
4. Step 4: Simplify right side
   1,025.47x = 857,584.89
5. Step 5: Solve for x
   x = 857,584.89/1,025.47
6. Step 6: Final answer
   x = 836.28