Finding the Fourth Proportional to 2,379,636, 3,568,112.60 and 781,770.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379,636 : 3,568,112.60 = 781,770.06 : x
2. Step 2: Convert to fraction form
   2,379,636/3,568,112.60 = 781,770.06/x
3. Step 3: Cross multiply
   2,379,636x = 3,568,112.60 × 781,770.06
4. Step 4: Simplify right side
   2,379,636x = 2,789,443,601,388.76
5. Step 5: Solve for x
   x = 2,789,443,601,388.76/2,379,636
6. Step 6: Final answer
   x = 1,172,214.41