Finding the Fourth Proportional to 1,879,018.98, 2,818,503.89 and 459,087.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,879,018.98 : 2,818,503.89 = 459,087.36 : x
2. Step 2: Convert to fraction form
   1,879,018.98/2,818,503.89 = 459,087.36/x
3. Step 3: Cross multiply
   1,879,018.98x = 2,818,503.89 × 459,087.36
4. Step 4: Simplify right side
   1,879,018.98x = 1,293,939,510,009.83
5. Step 5: Solve for x
   x = 1,293,939,510,009.83/1,879,018.98
6. Step 6: Final answer
   x = 688,625.03