Finding the Fourth Proportional to 1,222.16, 1,834.23 and 637.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.16 : 1,834.23 = 637.34 : x
2. Step 2: Convert to fraction form
   1,222.16/1,834.23 = 637.34/x
3. Step 3: Cross multiply
   1,222.16x = 1,834.23 × 637.34
4. Step 4: Simplify right side
   1,222.16x = 1,169,028.15
5. Step 5: Solve for x
   x = 1,169,028.15/1,222.16
6. Step 6: Final answer
   x = 956.53