Finding the Fourth Proportional to 990,462.69, 1,363,778.06 and 773,547.57

Step by Step Solution

1. Step 1: Write the proportion equation
   990,462.69 : 1,363,778.06 = 773,547.57 : x
2. Step 2: Convert to fraction form
   990,462.69/1,363,778.06 = 773,547.57/x
3. Step 3: Cross multiply
   990,462.69x = 1,363,778.06 × 773,547.57
4. Step 4: Simplify right side
   990,462.69x = 1,054,947,200,464.58
5. Step 5: Solve for x
   x = 1,054,947,200,464.58/990,462.69
6. Step 6: Final answer
   x = 1,065,105.44