Finding the Fourth Proportional to 1,229,884.68, 1,697,316.89 and 678,597.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,884.68 : 1,697,316.89 = 678,597.69 : x
2. Step 2: Convert to fraction form
   1,229,884.68/1,697,316.89 = 678,597.69/x
3. Step 3: Cross multiply
   1,229,884.68x = 1,697,316.89 × 678,597.69
4. Step 4: Simplify right side
   1,229,884.68x = 1,151,795,317,359.00
5. Step 5: Solve for x
   x = 1,151,795,317,359.00/1,229,884.68
6. Step 6: Final answer
   x = 936,506.76