Finding the Fourth Proportional to 723,076.86, 1,084,177.89 and 323,643.18

Step by Step Solution

1. Step 1: Write the proportion equation
   723,076.86 : 1,084,177.89 = 323,643.18 : x
2. Step 2: Convert to fraction form
   723,076.86/1,084,177.89 = 323,643.18/x
3. Step 3: Cross multiply
   723,076.86x = 1,084,177.89 × 323,643.18
4. Step 4: Simplify right side
   723,076.86x = 350,886,780,005.29
5. Step 5: Solve for x
   x = 350,886,780,005.29/723,076.86
6. Step 6: Final answer
   x = 485,268.99