Finding the Fourth Proportional to 1,123,162.59, 1,684,743.87 and 270,234.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,162.59 : 1,684,743.87 = 270,234.25 : x
2. Step 2: Convert to fraction form
   1,123,162.59/1,684,743.87 = 270,234.25/x
3. Step 3: Cross multiply
   1,123,162.59x = 1,684,743.87 × 270,234.25
4. Step 4: Simplify right side
   1,123,162.59x = 455,275,496,151.55
5. Step 5: Solve for x
   x = 455,275,496,151.55/1,123,162.59
6. Step 6: Final answer
   x = 405,351.37