Finding the Fourth Proportional to 1,105.13, 1,522.32 and 1,025.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.13 : 1,522.32 = 1,025.38 : x
2. Step 2: Convert to fraction form
   1,105.13/1,522.32 = 1,025.38/x
3. Step 3: Cross multiply
   1,105.13x = 1,522.32 × 1,025.38
4. Step 4: Simplify right side
   1,105.13x = 1,560,956.48
5. Step 5: Solve for x
   x = 1,560,956.48/1,105.13
6. Step 6: Final answer
   x = 1,412.46