Finding the Fourth Proportional to 2,363,216.76, 3,261,222.52 and 1,290,128.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363,216.76 : 3,261,222.52 = 1,290,128.76 : x
2. Step 2: Convert to fraction form
   2,363,216.76/3,261,222.52 = 1,290,128.76/x
3. Step 3: Cross multiply
   2,363,216.76x = 3,261,222.52 × 1,290,128.76
4. Step 4: Simplify right side
   2,363,216.76x = 4,207,396,965,811.68
5. Step 5: Solve for x
   x = 4,207,396,965,811.68/2,363,216.76
6. Step 6: Final answer
   x = 1,780,368.62