Finding the Fourth Proportional to 926,955.50, 1,279,198.59 and 503,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   926,955.50 : 1,279,198.59 = 503,019.50 : x
2. Step 2: Convert to fraction form
   926,955.50/1,279,198.59 = 503,019.50/x
3. Step 3: Cross multiply
   926,955.50x = 1,279,198.59 × 503,019.50
4. Step 4: Simplify right side
   926,955.50x = 643,461,835,142.51
5. Step 5: Solve for x
   x = 643,461,835,142.51/926,955.50
6. Step 6: Final answer
   x = 694,166.91