Finding the Fourth Proportional to 779,596, 1,075,842.56 and 421,900

Step by Step Solution

1. Step 1: Write the proportion equation
   779,596 : 1,075,842.56 = 421,900 : x
2. Step 2: Convert to fraction form
   779,596/1,075,842.56 = 421,900/x
3. Step 3: Cross multiply
   779,596x = 1,075,842.56 × 421,900
4. Step 4: Simplify right side
   779,596x = 453,897,976,064
5. Step 5: Solve for x
   x = 453,897,976,064/779,596
6. Step 6: Final answer
   x = 582,222.04