Finding the Fourth Proportional to 693,978.76, 957,931.86 and 476,906.22

Step by Step Solution

1. Step 1: Write the proportion equation
   693,978.76 : 957,931.86 = 476,906.22 : x
2. Step 2: Convert to fraction form
   693,978.76/957,931.86 = 476,906.22/x
3. Step 3: Cross multiply
   693,978.76x = 957,931.86 × 476,906.22
4. Step 4: Simplify right side
   693,978.76x = 456,843,659,458.22
5. Step 5: Solve for x
   x = 456,843,659,458.22/693,978.76
6. Step 6: Final answer
   x = 658,296.31