Finding the Fourth Proportional to 2,559,119.23, 3,838,689.69 and 665,723.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559,119.23 : 3,838,689.69 = 665,723.98 : x
2. Step 2: Convert to fraction form
   2,559,119.23/3,838,689.69 = 665,723.98/x
3. Step 3: Cross multiply
   2,559,119.23x = 3,838,689.69 × 665,723.98
4. Step 4: Simplify right side
   2,559,119.23x = 2,555,507,778,411.77
5. Step 5: Solve for x
   x = 2,555,507,778,411.77/2,559,119.23
6. Step 6: Final answer
   x = 998,588.79