Finding the Fourth Proportional to 1,225.32, 1,838.37 and 404.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.32 : 1,838.37 = 404.19 : x
2. Step 2: Convert to fraction form
   1,225.32/1,838.37 = 404.19/x
3. Step 3: Cross multiply
   1,225.32x = 1,838.37 × 404.19
4. Step 4: Simplify right side
   1,225.32x = 743,050.77
5. Step 5: Solve for x
   x = 743,050.77/1,225.32
6. Step 6: Final answer
   x = 606.41