Finding the Fourth Proportional to 2,168,456.10, 3,255,794.55 and 1,639,688.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168,456.10 : 3,255,794.55 = 1,639,688.10 : x
2. Step 2: Convert to fraction form
   2,168,456.10/3,255,794.55 = 1,639,688.10/x
3. Step 3: Cross multiply
   2,168,456.10x = 3,255,794.55 × 1,639,688.10
4. Step 4: Simplify right side
   2,168,456.10x = 5,338,487,579,679.86
5. Step 5: Solve for x
   x = 5,338,487,579,679.86/2,168,456.10
6. Step 6: Final answer
   x = 2,461,884.09