Finding the Fourth Proportional to 2,665,385.96, 3,998,075.85 and 868,266.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,385.96 : 3,998,075.85 = 868,266.56 : x
2. Step 2: Convert to fraction form
   2,665,385.96/3,998,075.85 = 868,266.56/x
3. Step 3: Cross multiply
   2,665,385.96x = 3,998,075.85 × 868,266.56
4. Step 4: Simplify right side
   2,665,385.96x = 3,471,395,544,908.20
5. Step 5: Solve for x
   x = 3,471,395,544,908.20/2,665,385.96
6. Step 6: Final answer
   x = 1,302,398.83