Finding the Fourth Proportional to 825,196.32, 1,237,811.76 and 264,229.20

Step by Step Solution

1. Step 1: Write the proportion equation
   825,196.32 : 1,237,811.76 = 264,229.20 : x
2. Step 2: Convert to fraction form
   825,196.32/1,237,811.76 = 264,229.20/x
3. Step 3: Cross multiply
   825,196.32x = 1,237,811.76 × 264,229.20
4. Step 4: Simplify right side
   825,196.32x = 327,066,011,095.39
5. Step 5: Solve for x
   x = 327,066,011,095.39/825,196.32
6. Step 6: Final answer
   x = 396,349.33