Finding the Fourth Proportional to 922,912, 1,273,618.56 and 498,976

Step by Step Solution

1. Step 1: Write the proportion equation
   922,912 : 1,273,618.56 = 498,976 : x
2. Step 2: Convert to fraction form
   922,912/1,273,618.56 = 498,976/x
3. Step 3: Cross multiply
   922,912x = 1,273,618.56 × 498,976
4. Step 4: Simplify right side
   922,912x = 635,505,094,594.56
5. Step 5: Solve for x
   x = 635,505,094,594.56/922,912
6. Step 6: Final answer
   x = 688,586.88