Finding the Fourth Proportional to 1,031,154.87, 1,546,617.69 and 321,123.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031,154.87 : 1,546,617.69 = 321,123.45 : x
2. Step 2: Convert to fraction form
   1,031,154.87/1,546,617.69 = 321,123.45/x
3. Step 3: Cross multiply
   1,031,154.87x = 1,546,617.69 × 321,123.45
4. Step 4: Simplify right side
   1,031,154.87x = 496,655,208,443.83
5. Step 5: Solve for x
   x = 496,655,208,443.83/1,031,154.87
6. Step 6: Final answer
   x = 481,649.48