Finding the Fourth Proportional to 1,237,131.72, 1,855,988.09 and 384,159.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,237,131.72 : 1,855,988.09 = 384,159.33 : x
2. Step 2: Convert to fraction form
   1,237,131.72/1,855,988.09 = 384,159.33/x
3. Step 3: Cross multiply
   1,237,131.72x = 1,855,988.09 × 384,159.33
4. Step 4: Simplify right side
   1,237,131.72x = 712,995,141,142.38
5. Step 5: Solve for x
   x = 712,995,141,142.38/1,237,131.72
6. Step 6: Final answer
   x = 576,329.21