Finding the Fourth Proportional to 681,608.86, 940,661.31 and 375,684.82

Step by Step Solution

1. Step 1: Write the proportion equation
   681,608.86 : 940,661.31 = 375,684.82 : x
2. Step 2: Convert to fraction form
   681,608.86/940,661.31 = 375,684.82/x
3. Step 3: Cross multiply
   681,608.86x = 940,661.31 × 375,684.82
4. Step 4: Simplify right side
   681,608.86x = 353,392,174,928.31
5. Step 5: Solve for x
   x = 353,392,174,928.31/681,608.86
6. Step 6: Final answer
   x = 518,467.70