Finding the Fourth Proportional to 671,109.89, 926,171.51 and 384,648.48

Step by Step Solution

1. Step 1: Write the proportion equation
   671,109.89 : 926,171.51 = 384,648.48 : x
2. Step 2: Convert to fraction form
   671,109.89/926,171.51 = 384,648.48/x
3. Step 3: Cross multiply
   671,109.89x = 926,171.51 × 384,648.48
4. Step 4: Simplify right side
   671,109.89x = 356,250,461,617.56
5. Step 5: Solve for x
   x = 356,250,461,617.56/671,109.89
6. Step 6: Final answer
   x = 530,837.75