Finding the Fourth Proportional to 1,622.54, 2,238.71 and 914.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.54 : 2,238.71 = 914.25 : x
2. Step 2: Convert to fraction form
   1,622.54/2,238.71 = 914.25/x
3. Step 3: Cross multiply
   1,622.54x = 2,238.71 × 914.25
4. Step 4: Simplify right side
   1,622.54x = 2,046,742.90
5. Step 5: Solve for x
   x = 2,046,742.90/1,622.54
6. Step 6: Final answer
   x = 1,261.44