Finding the Fourth Proportional to 1,223.10, 1,834.83 and 401.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.10 : 1,834.83 = 401.18 : x
2. Step 2: Convert to fraction form
   1,223.10/1,834.83 = 401.18/x
3. Step 3: Cross multiply
   1,223.10x = 1,834.83 × 401.18
4. Step 4: Simplify right side
   1,223.10x = 736,093.23
5. Step 5: Solve for x
   x = 736,093.23/1,223.10
6. Step 6: Final answer
   x = 601.83