Finding the Fourth Proportional to 1,018,300.72, 1,405,098.79 and 588,497.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,300.72 : 1,405,098.79 = 588,497.85 : x
2. Step 2: Convert to fraction form
   1,018,300.72/1,405,098.79 = 588,497.85/x
3. Step 3: Cross multiply
   1,018,300.72x = 1,405,098.79 × 588,497.85
4. Step 4: Simplify right side
   1,018,300.72x = 826,897,616,952.60
5. Step 5: Solve for x
   x = 826,897,616,952.60/1,018,300.72
6. Step 6: Final answer
   x = 812,036.76