Finding the Fourth Proportional to 2,108,569.86, 3,162,826.44 and 511,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108,569.86 : 3,162,826.44 = 511,146.72 : x
2. Step 2: Convert to fraction form
   2,108,569.86/3,162,826.44 = 511,146.72/x
3. Step 3: Cross multiply
   2,108,569.86x = 3,162,826.44 × 511,146.72
4. Step 4: Simplify right side
   2,108,569.86x = 1,616,668,360,735.28
5. Step 5: Solve for x
   x = 1,616,668,360,735.28/2,108,569.86
6. Step 6: Final answer
   x = 766,713.21