Finding the Fourth Proportional to 2,580,979.31, 3,561,729.86 and 1,435,049.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580,979.31 : 3,561,729.86 = 1,435,049.63 : x
2. Step 2: Convert to fraction form
   2,580,979.31/3,561,729.86 = 1,435,049.63/x
3. Step 3: Cross multiply
   2,580,979.31x = 3,561,729.86 × 1,435,049.63
4. Step 4: Simplify right side
   2,580,979.31x = 5,111,259,117,752.95
5. Step 5: Solve for x
   x = 5,111,259,117,752.95/2,580,979.31
6. Step 6: Final answer
   x = 1,980,356.49