Finding the Fourth Proportional to 1,622.34, 2,238.81 and 914.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.34 : 2,238.81 = 914.19 : x
2. Step 2: Convert to fraction form
   1,622.34/2,238.81 = 914.19/x
3. Step 3: Cross multiply
   1,622.34x = 2,238.81 × 914.19
4. Step 4: Simplify right side
   1,622.34x = 2,046,685.89
5. Step 5: Solve for x
   x = 2,046,685.89/1,622.34
6. Step 6: Final answer
   x = 1,261.56