Finding the Fourth Proportional to 926,992, 1,279,248.96 and 503,056

Step by Step Solution

1. Step 1: Write the proportion equation
   926,992 : 1,279,248.96 = 503,056 : x
2. Step 2: Convert to fraction form
   926,992/1,279,248.96 = 503,056/x
3. Step 3: Cross multiply
   926,992x = 1,279,248.96 × 503,056
4. Step 4: Simplify right side
   926,992x = 643,533,864,821.76
5. Step 5: Solve for x
   x = 643,533,864,821.76/926,992
6. Step 6: Final answer
   x = 694,217.28