Finding the Fourth Proportional to 2,265,003.18, 3,398,686.56 and 918,161.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265,003.18 : 3,398,686.56 = 918,161.10 : x
2. Step 2: Convert to fraction form
   2,265,003.18/3,398,686.56 = 918,161.10/x
3. Step 3: Cross multiply
   2,265,003.18x = 3,398,686.56 × 918,161.10
4. Step 4: Simplify right side
   2,265,003.18x = 3,120,541,790,484.82
5. Step 5: Solve for x
   x = 3,120,541,790,484.82/2,265,003.18
6. Step 6: Final answer
   x = 1,377,720.71