Finding the Fourth Proportional to 1,423,992.14, 1,965,105.86 and 779,406.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423,992.14 : 1,965,105.86 = 779,406.69 : x
2. Step 2: Convert to fraction form
   1,423,992.14/1,965,105.86 = 779,406.69/x
3. Step 3: Cross multiply
   1,423,992.14x = 1,965,105.86 × 779,406.69
4. Step 4: Simplify right side
   1,423,992.14x = 1,531,616,649,945.17
5. Step 5: Solve for x
   x = 1,531,616,649,945.17/1,423,992.14
6. Step 6: Final answer
   x = 1,075,579.43