Finding the Fourth Proportional to 2,113,798.82, 3,170,689.65 and 765,645.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,798.82 : 3,170,689.65 = 765,645.89 : x
2. Step 2: Convert to fraction form
   2,113,798.82/3,170,689.65 = 765,645.89/x
3. Step 3: Cross multiply
   2,113,798.82x = 3,170,689.65 × 765,645.89
4. Step 4: Simplify right side
   2,113,798.82x = 2,427,625,483,134.59
5. Step 5: Solve for x
   x = 2,427,625,483,134.59/2,113,798.82
6. Step 6: Final answer
   x = 1,148,465.72