Finding the Fourth Proportional to 684,857, 945,105.90 and 383,051

Step by Step Solution

1. Step 1: Write the proportion equation
   684,857 : 945,105.90 = 383,051 : x
2. Step 2: Convert to fraction form
   684,857/945,105.90 = 383,051/x
3. Step 3: Cross multiply
   684,857x = 945,105.90 × 383,051
4. Step 4: Simplify right side
   684,857x = 362,023,760,100.90
5. Step 5: Solve for x
   x = 362,023,760,100.90/684,857
6. Step 6: Final answer
   x = 528,612.19