Finding the Fourth Proportional to 1,015.50, 1,522.38 and 925.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.50 : 1,522.38 = 925.22 : x
2. Step 2: Convert to fraction form
   1,015.50/1,522.38 = 925.22/x
3. Step 3: Cross multiply
   1,015.50x = 1,522.38 × 925.22
4. Step 4: Simplify right side
   1,015.50x = 1,408,536.42
5. Step 5: Solve for x
   x = 1,408,536.42/1,015.50
6. Step 6: Final answer
   x = 1,387.04