Finding the Fourth Proportional to 2,587,020.28, 3,880,998.20 and 1,069,879.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,020.28 : 3,880,998.20 = 1,069,879.55 : x
2. Step 2: Convert to fraction form
   2,587,020.28/3,880,998.20 = 1,069,879.55/x
3. Step 3: Cross multiply
   2,587,020.28x = 3,880,998.20 × 1,069,879.55
4. Step 4: Simplify right side
   2,587,020.28x = 4,152,200,592,714.92
5. Step 5: Solve for x
   x = 4,152,200,592,714.92/2,587,020.28
6. Step 6: Final answer
   x = 1,605,012.77