Finding the Fourth Proportional to 2,078,091.60, 3,119,105.70 and 1,280,930.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,091.60 : 3,119,105.70 = 1,280,930.10 : x
2. Step 2: Convert to fraction form
   2,078,091.60/3,119,105.70 = 1,280,930.10/x
3. Step 3: Cross multiply
   2,078,091.60x = 3,119,105.70 × 1,280,930.10
4. Step 4: Simplify right side
   2,078,091.60x = 3,995,356,376,211.57
5. Step 5: Solve for x
   x = 3,995,356,376,211.57/2,078,091.60
6. Step 6: Final answer
   x = 1,922,608.40