Finding the Fourth Proportional to 1,015.53, 1,401.40 and 567.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.53 : 1,401.40 = 567.42 : x
2. Step 2: Convert to fraction form
   1,015.53/1,401.40 = 567.42/x
3. Step 3: Cross multiply
   1,015.53x = 1,401.40 × 567.42
4. Step 4: Simplify right side
   1,015.53x = 795,182.39
5. Step 5: Solve for x
   x = 795,182.39/1,015.53
6. Step 6: Final answer
   x = 783.02