Finding the Fourth Proportional to 2,108,570.61, 3,162,827.57 and 511,147.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108,570.61 : 3,162,827.57 = 511,147.47 : x
2. Step 2: Convert to fraction form
   2,108,570.61/3,162,827.57 = 511,147.47/x
3. Step 3: Cross multiply
   2,108,570.61x = 3,162,827.57 × 511,147.47
4. Step 4: Simplify right side
   2,108,570.61x = 1,616,671,307,896.01
5. Step 5: Solve for x
   x = 1,616,671,307,896.01/2,108,570.61
6. Step 6: Final answer
   x = 766,714.33