Finding the Fourth Proportional to 693,928, 957,620.64 and 375,976

Step by Step Solution

1. Step 1: Write the proportion equation
   693,928 : 957,620.64 = 375,976 : x
2. Step 2: Convert to fraction form
   693,928/957,620.64 = 375,976/x
3. Step 3: Cross multiply
   693,928x = 957,620.64 × 375,976
4. Step 4: Simplify right side
   693,928x = 360,042,377,744.64
5. Step 5: Solve for x
   x = 360,042,377,744.64/693,928
6. Step 6: Final answer
   x = 518,846.88