Finding the Fourth Proportional to 1,005,048.05, 1,507,607.47 and 321,955.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,048.05 : 1,507,607.47 = 321,955.67 : x
2. Step 2: Convert to fraction form
   1,005,048.05/1,507,607.47 = 321,955.67/x
3. Step 3: Cross multiply
   1,005,048.05x = 1,507,607.47 × 321,955.67
4. Step 4: Simplify right side
   1,005,048.05x = 485,382,773,100.86
5. Step 5: Solve for x
   x = 485,382,773,100.86/1,005,048.05
6. Step 6: Final answer
   x = 482,944.85