Finding the Fourth Proportional to 683,168.30, 1,023,112.20 and 366,928.10

Step by Step Solution

1. Step 1: Write the proportion equation
   683,168.30 : 1,023,112.20 = 366,928.10 : x
2. Step 2: Convert to fraction form
   683,168.30/1,023,112.20 = 366,928.10/x
3. Step 3: Cross multiply
   683,168.30x = 1,023,112.20 × 366,928.10
4. Step 4: Simplify right side
   683,168.30x = 375,408,615,632.82
5. Step 5: Solve for x
   x = 375,408,615,632.82/683,168.30
6. Step 6: Final answer
   x = 549,511.18