Finding the Fourth Proportional to 875,353.56, 1,207,997.12 and 493,380.34

Step by Step Solution

1. Step 1: Write the proportion equation
   875,353.56 : 1,207,997.12 = 493,380.34 : x
2. Step 2: Convert to fraction form
   875,353.56/1,207,997.12 = 493,380.34/x
3. Step 3: Cross multiply
   875,353.56x = 1,207,997.12 × 493,380.34
4. Step 4: Simplify right side
   875,353.56x = 596,002,030,007.94
5. Step 5: Solve for x
   x = 596,002,030,007.94/875,353.56
6. Step 6: Final answer
   x = 680,870.06