Finding the Fourth Proportional to 887,069.72, 1,224,156.72 and 479,171.56

Step by Step Solution

1. Step 1: Write the proportion equation
   887,069.72 : 1,224,156.72 = 479,171.56 : x
2. Step 2: Convert to fraction form
   887,069.72/1,224,156.72 = 479,171.56/x
3. Step 3: Cross multiply
   887,069.72x = 1,224,156.72 × 479,171.56
4. Step 4: Simplify right side
   887,069.72x = 586,581,085,206.88
5. Step 5: Solve for x
   x = 586,581,085,206.88/887,069.72
6. Step 6: Final answer
   x = 661,257.03