Finding the Fourth Proportional to 657,196.20, 922,563 and 657,196.20

Step by Step Solution

1. Step 1: Write the proportion equation
   657,196.20 : 922,563 = 657,196.20 : x
2. Step 2: Convert to fraction form
   657,196.20/922,563 = 657,196.20/x
3. Step 3: Cross multiply
   657,196.20x = 922,563 × 657,196.20
4. Step 4: Simplify right side
   657,196.20x = 606,304,897,860.60
5. Step 5: Solve for x
   x = 606,304,897,860.60/657,196.20
6. Step 6: Final answer
   x = 922,563