Finding the Fourth Proportional to 773,108.10, 1,159,662.15 and 720,620.10

Step by Step Solution

1. Step 1: Write the proportion equation
   773,108.10 : 1,159,662.15 = 720,620.10 : x
2. Step 2: Convert to fraction form
   773,108.10/1,159,662.15 = 720,620.10/x
3. Step 3: Cross multiply
   773,108.10x = 1,159,662.15 × 720,620.10
4. Step 4: Simplify right side
   773,108.10x = 835,675,854,499.22
5. Step 5: Solve for x
   x = 835,675,854,499.22/773,108.10
6. Step 6: Final answer
   x = 1,080,930.15