Finding the Fourth Proportional to 911,648.75, 1,258,882.22 and 568,071.05

Step by Step Solution

1. Step 1: Write the proportion equation
   911,648.75 : 1,258,882.22 = 568,071.05 : x
2. Step 2: Convert to fraction form
   911,648.75/1,258,882.22 = 568,071.05/x
3. Step 3: Cross multiply
   911,648.75x = 1,258,882.22 × 568,071.05
4. Step 4: Simplify right side
   911,648.75x = 715,134,539,667.50
5. Step 5: Solve for x
   x = 715,134,539,667.50/911,648.75
6. Step 6: Final answer
   x = 784,440.88