Finding the Fourth Proportional to 1,354.22, 1,868.27 and 912.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.22 : 1,868.27 = 912.27 : x
2. Step 2: Convert to fraction form
   1,354.22/1,868.27 = 912.27/x
3. Step 3: Cross multiply
   1,354.22x = 1,868.27 × 912.27
4. Step 4: Simplify right side
   1,354.22x = 1,704,358.53
5. Step 5: Solve for x
   x = 1,704,358.53/1,354.22
6. Step 6: Final answer
   x = 1,258.55