Finding the Fourth Proportional to 2,138,381.34, 3,208,050.78 and 718,398.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,381.34 : 3,208,050.78 = 718,398.69 : x
2. Step 2: Convert to fraction form
   2,138,381.34/3,208,050.78 = 718,398.69/x
3. Step 3: Cross multiply
   2,138,381.34x = 3,208,050.78 × 718,398.69
4. Step 4: Simplify right side
   2,138,381.34x = 2,304,659,477,805.48
5. Step 5: Solve for x
   x = 2,304,659,477,805.48/2,138,381.34
6. Step 6: Final answer
   x = 1,077,758.88