Finding the Fourth Proportional to 767,682.56, 1,059,059.61 and 445,205.77

Step by Step Solution

1. Step 1: Write the proportion equation
   767,682.56 : 1,059,059.61 = 445,205.77 : x
2. Step 2: Convert to fraction form
   767,682.56/1,059,059.61 = 445,205.77/x
3. Step 3: Cross multiply
   767,682.56x = 1,059,059.61 × 445,205.77
4. Step 4: Simplify right side
   767,682.56x = 471,499,446,498.30
5. Step 5: Solve for x
   x = 471,499,446,498.30/767,682.56
6. Step 6: Final answer
   x = 614,185.43