Finding the Fourth Proportional to 1,117,940.10, 1,676,910.67 and 359,781.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,940.10 : 1,676,910.67 = 359,781.48 : x
2. Step 2: Convert to fraction form
   1,117,940.10/1,676,910.67 = 359,781.48/x
3. Step 3: Cross multiply
   1,117,940.10x = 1,676,910.67 × 359,781.48
4. Step 4: Simplify right side
   1,117,940.10x = 603,321,401,780.94
5. Step 5: Solve for x
   x = 603,321,401,780.94/1,117,940.10
6. Step 6: Final answer
   x = 539,672.39