Finding the Fourth Proportional to 2,167,573.62, 2,991,250.55 and 1,296,408.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167,573.62 : 2,991,250.55 = 1,296,408.30 : x
2. Step 2: Convert to fraction form
   2,167,573.62/2,991,250.55 = 1,296,408.30/x
3. Step 3: Cross multiply
   2,167,573.62x = 2,991,250.55 × 1,296,408.30
4. Step 4: Simplify right side
   2,167,573.62x = 3,877,882,025,443.31
5. Step 5: Solve for x
   x = 3,877,882,025,443.31/2,167,573.62
6. Step 6: Final answer
   x = 1,789,042.82