Finding the Fourth Proportional to 1,223.97, 1,834.56 and 608.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.97 : 1,834.56 = 608.10 : x
2. Step 2: Convert to fraction form
   1,223.97/1,834.56 = 608.10/x
3. Step 3: Cross multiply
   1,223.97x = 1,834.56 × 608.10
4. Step 4: Simplify right side
   1,223.97x = 1,115,595.94
5. Step 5: Solve for x
   x = 1,115,595.94/1,223.97
6. Step 6: Final answer
   x = 911.46