Finding the Fourth Proportional to 778,384.69, 1,073,613.59 and 505,944.43

Step by Step Solution

1. Step 1: Write the proportion equation
   778,384.69 : 1,073,613.59 = 505,944.43 : x
2. Step 2: Convert to fraction form
   778,384.69/1,073,613.59 = 505,944.43/x
3. Step 3: Cross multiply
   778,384.69x = 1,073,613.59 × 505,944.43
4. Step 4: Simplify right side
   778,384.69x = 543,188,812,516.34
5. Step 5: Solve for x
   x = 543,188,812,516.34/778,384.69
6. Step 6: Final answer
   x = 697,841.08