Finding the Fourth Proportional to 981,665.36, 1,354,144.92 and 589,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   981,665.36 : 1,354,144.92 = 589,096.72 : x
2. Step 2: Convert to fraction form
   981,665.36/1,354,144.92 = 589,096.72/x
3. Step 3: Cross multiply
   981,665.36x = 1,354,144.92 × 589,096.72
4. Step 4: Simplify right side
   981,665.36x = 797,722,330,776.66
5. Step 5: Solve for x
   x = 797,722,330,776.66/981,665.36
6. Step 6: Final answer
   x = 812,621.45