Finding the Fourth Proportional to 1,389,167.42, 2,083,831.86 and 536,243.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,167.42 : 2,083,831.86 = 536,243.90 : x
2. Step 2: Convert to fraction form
   1,389,167.42/2,083,831.86 = 536,243.90/x
3. Step 3: Cross multiply
   1,389,167.42x = 2,083,831.86 × 536,243.90
4. Step 4: Simplify right side
   1,389,167.42x = 1,117,442,123,550.65
5. Step 5: Solve for x
   x = 1,117,442,123,550.65/1,389,167.42
6. Step 6: Final answer
   x = 804,397.01