Finding the Fourth Proportional to 2,536,591.92, 3,500,403.96 and 1,390,647.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536,591.92 : 3,500,403.96 = 1,390,647.12 : x
2. Step 2: Convert to fraction form
   2,536,591.92/3,500,403.96 = 1,390,647.12/x
3. Step 3: Cross multiply
   2,536,591.92x = 3,500,403.96 × 1,390,647.12
4. Step 4: Simplify right side
   2,536,591.92x = 4,867,826,685,810.60
5. Step 5: Solve for x
   x = 4,867,826,685,810.60/2,536,591.92
6. Step 6: Final answer
   x = 1,919,042.10