Finding the Fourth Proportional to 1,018,598.89, 1,405,584.19 and 588,906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,598.89 : 1,405,584.19 = 588,906.69 : x
2. Step 2: Convert to fraction form
   1,018,598.89/1,405,584.19 = 588,906.69/x
3. Step 3: Cross multiply
   1,018,598.89x = 1,405,584.19 × 588,906.69
4. Step 4: Simplify right side
   1,018,598.89x = 827,757,940,174.04
5. Step 5: Solve for x
   x = 827,757,940,174.04/1,018,598.89
6. Step 6: Final answer
   x = 812,643.67