Finding the Fourth Proportional to 1,108,018.94, 1,529,196.72 and 618,065.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108,018.94 : 1,529,196.72 = 618,065.63 : x
2. Step 2: Convert to fraction form
   1,108,018.94/1,529,196.72 = 618,065.63/x
3. Step 3: Cross multiply
   1,108,018.94x = 1,529,196.72 × 618,065.63
4. Step 4: Simplify right side
   1,108,018.94x = 945,143,929,911.49
5. Step 5: Solve for x
   x = 945,143,929,911.49/1,108,018.94
6. Step 6: Final answer
   x = 853,003.41