Finding the Fourth Proportional to 503,059.59, 693,993.24 and 298,994.55

Step by Step Solution

1. Step 1: Write the proportion equation
   503,059.59 : 693,993.24 = 298,994.55 : x
2. Step 2: Convert to fraction form
   503,059.59/693,993.24 = 298,994.55/x
3. Step 3: Cross multiply
   503,059.59x = 693,993.24 × 298,994.55
4. Step 4: Simplify right side
   503,059.59x = 207,500,196,496.84
5. Step 5: Solve for x
   x = 207,500,196,496.84/503,059.59
6. Step 6: Final answer
   x = 412,476.38