Finding the Fourth Proportional to 2,259,723, 3,117,658.98 and 1,279,528.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259,723 : 3,117,658.98 = 1,279,528.05 : x
2. Step 2: Convert to fraction form
   2,259,723/3,117,658.98 = 1,279,528.05/x
3. Step 3: Cross multiply
   2,259,723x = 3,117,658.98 × 1,279,528.05
4. Step 4: Simplify right side
   2,259,723x = 3,989,132,115,244.39
5. Step 5: Solve for x
   x = 3,989,132,115,244.39/2,259,723
6. Step 6: Final answer
   x = 1,765,319.07