Finding the Fourth Proportional to 707,559.59, 1,061,774.49 and 281,020.79

Step by Step Solution

1. Step 1: Write the proportion equation
   707,559.59 : 1,061,774.49 = 281,020.79 : x
2. Step 2: Convert to fraction form
   707,559.59/1,061,774.49 = 281,020.79/x
3. Step 3: Cross multiply
   707,559.59x = 1,061,774.49 × 281,020.79
4. Step 4: Simplify right side
   707,559.59x = 298,380,705,981.65
5. Step 5: Solve for x
   x = 298,380,705,981.65/707,559.59
6. Step 6: Final answer
   x = 421,704.00