Finding the Fourth Proportional to 2,665,375.80, 3,998,060.73 and 868,256.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,375.80 : 3,998,060.73 = 868,256.34 : x
2. Step 2: Convert to fraction form
   2,665,375.80/3,998,060.73 = 868,256.34/x
3. Step 3: Cross multiply
   2,665,375.80x = 3,998,060.73 × 868,256.34
4. Step 4: Simplify right side
   2,665,375.80x = 3,471,341,576,527.53
5. Step 5: Solve for x
   x = 3,471,341,576,527.53/2,665,375.80
6. Step 6: Final answer
   x = 1,302,383.54