Finding the Fourth Proportional to 774,819.78, 1,069,338.04 and 469,064.76

Step by Step Solution

1. Step 1: Write the proportion equation
   774,819.78 : 1,069,338.04 = 469,064.76 : x
2. Step 2: Convert to fraction form
   774,819.78/1,069,338.04 = 469,064.76/x
3. Step 3: Cross multiply
   774,819.78x = 1,069,338.04 × 469,064.76
4. Step 4: Simplify right side
   774,819.78x = 501,588,791,091.47
5. Step 5: Solve for x
   x = 501,588,791,091.47/774,819.78
6. Step 6: Final answer
   x = 647,361.88