Finding the Fourth Proportional to 779,352, 1,075,505.76 and 421,656

Step by Step Solution

1. Step 1: Write the proportion equation
   779,352 : 1,075,505.76 = 421,656 : x
2. Step 2: Convert to fraction form
   779,352/1,075,505.76 = 421,656/x
3. Step 3: Cross multiply
   779,352x = 1,075,505.76 × 421,656
4. Step 4: Simplify right side
   779,352x = 453,493,456,738.56
5. Step 5: Solve for x
   x = 453,493,456,738.56/779,352
6. Step 6: Final answer
   x = 581,885.28