Finding the Fourth Proportional to 2,085,608.10, 3,128,412.15 and 823,271.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085,608.10 : 3,128,412.15 = 823,271.70 : x
2. Step 2: Convert to fraction form
   2,085,608.10/3,128,412.15 = 823,271.70/x
3. Step 3: Cross multiply
   2,085,608.10x = 3,128,412.15 × 823,271.70
4. Step 4: Simplify right side
   2,085,608.10x = 2,575,533,189,031.15
5. Step 5: Solve for x
   x = 2,575,533,189,031.15/2,085,608.10
6. Step 6: Final answer
   x = 1,234,907.55