Finding the Fourth Proportional to 2,905,863.39, 4,359,776.04 and 1,286,408.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,905,863.39 : 4,359,776.04 = 1,286,408.88 : x
2. Step 2: Convert to fraction form
   2,905,863.39/4,359,776.04 = 1,286,408.88/x
3. Step 3: Cross multiply
   2,905,863.39x = 4,359,776.04 × 1,286,408.88
4. Step 4: Simplify right side
   2,905,863.39x = 5,608,454,612,667.23
5. Step 5: Solve for x
   x = 5,608,454,612,667.23/2,905,863.39
6. Step 6: Final answer
   x = 1,930,047.58