Finding the Fourth Proportional to 1,169,036.69, 1,613,147.47 and 678,910.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,169,036.69 : 1,613,147.47 = 678,910.55 : x
2. Step 2: Convert to fraction form
   1,169,036.69/1,613,147.47 = 678,910.55/x
3. Step 3: Cross multiply
   1,169,036.69x = 1,613,147.47 × 678,910.55
4. Step 4: Simplify right side
   1,169,036.69x = 1,095,182,826,325.80
5. Step 5: Solve for x
   x = 1,095,182,826,325.80/1,169,036.69
6. Step 6: Final answer
   x = 936,825.03