Finding the Fourth Proportional to 671,111.57, 926,173.83 and 384,650.17

Step by Step Solution

1. Step 1: Write the proportion equation
   671,111.57 : 926,173.83 = 384,650.17 : x
2. Step 2: Convert to fraction form
   671,111.57/926,173.83 = 384,650.17/x
3. Step 3: Cross multiply
   671,111.57x = 926,173.83 × 384,650.17
4. Step 4: Simplify right side
   671,111.57x = 356,252,920,286.06
5. Step 5: Solve for x
   x = 356,252,920,286.06/671,111.57
6. Step 6: Final answer
   x = 530,840.08