Finding the Fourth Proportional to 707,557.59, 1,061,771.49 and 281,018.79

Step by Step Solution

1. Step 1: Write the proportion equation
   707,557.59 : 1,061,771.49 = 281,018.79 : x
2. Step 2: Convert to fraction form
   707,557.59/1,061,771.49 = 281,018.79/x
3. Step 3: Cross multiply
   707,557.59x = 1,061,771.49 × 281,018.79
4. Step 4: Simplify right side
   707,557.59x = 298,377,739,376.30
5. Step 5: Solve for x
   x = 298,377,739,376.30/707,557.59
6. Step 6: Final answer
   x = 421,700.99