Finding the Fourth Proportional to 1,568,255.32, 2,164,229.63 and 879,978.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,568,255.32 : 2,164,229.63 = 879,978.10 : x
2. Step 2: Convert to fraction form
   1,568,255.32/2,164,229.63 = 879,978.10/x
3. Step 3: Cross multiply
   1,568,255.32x = 2,164,229.63 × 879,978.10
4. Step 4: Simplify right side
   1,568,255.32x = 1,904,474,677,771.10
5. Step 5: Solve for x
   x = 1,904,474,677,771.10/1,568,255.32
6. Step 6: Final answer
   x = 1,214,390.70