Finding the Fourth Proportional to 1,150,739.48, 1,726,106.78 and 309,291.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,739.48 : 1,726,106.78 = 309,291.23 : x
2. Step 2: Convert to fraction form
   1,150,739.48/1,726,106.78 = 309,291.23/x
3. Step 3: Cross multiply
   1,150,739.48x = 1,726,106.78 × 309,291.23
4. Step 4: Simplify right side
   1,150,739.48x = 533,869,678,920.55
5. Step 5: Solve for x
   x = 533,869,678,920.55/1,150,739.48
6. Step 6: Final answer
   x = 463,936.18