Finding the Fourth Proportional to 1,581,078.69, 2,181,654 and 960,561.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,078.69 : 2,181,654 = 960,561.18 : x
2. Step 2: Convert to fraction form
   1,581,078.69/2,181,654 = 960,561.18/x
3. Step 3: Cross multiply
   1,581,078.69x = 2,181,654 × 960,561.18
4. Step 4: Simplify right side
   1,581,078.69x = 2,095,612,140,591.72
5. Step 5: Solve for x
   x = 2,095,612,140,591.72/1,581,078.69
6. Step 6: Final answer
   x = 1,325,431.91