Finding the Fourth Proportional to 1,015.48, 1,401.56 and 595.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.48 : 1,401.56 = 595.86 : x
2. Step 2: Convert to fraction form
   1,015.48/1,401.56 = 595.86/x
3. Step 3: Cross multiply
   1,015.48x = 1,401.56 × 595.86
4. Step 4: Simplify right side
   1,015.48x = 835,133.54
5. Step 5: Solve for x
   x = 835,133.54/1,015.48
6. Step 6: Final answer
   x = 822.40