Finding the Fourth Proportional to 1,489,436.32, 2,055,360.72 and 810,375.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,436.32 : 2,055,360.72 = 810,375.52 : x
2. Step 2: Convert to fraction form
   1,489,436.32/2,055,360.72 = 810,375.52/x
3. Step 3: Cross multiply
   1,489,436.32x = 2,055,360.72 × 810,375.52
4. Step 4: Simplify right side
   1,489,436.32x = 1,665,614,012,257.57
5. Step 5: Solve for x
   x = 1,665,614,012,257.57/1,489,436.32
6. Step 6: Final answer
   x = 1,118,284.81