Finding the Fourth Proportional to 2,576,335.30, 3,863,336.55 and 978,367.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576,335.30 : 3,863,336.55 = 978,367.30 : x
2. Step 2: Convert to fraction form
   2,576,335.30/3,863,336.55 = 978,367.30/x
3. Step 3: Cross multiply
   2,576,335.30x = 3,863,336.55 × 978,367.30
4. Step 4: Simplify right side
   2,576,335.30x = 3,779,762,149,414.82
5. Step 5: Solve for x
   x = 3,779,762,149,414.82/2,576,335.30
6. Step 6: Final answer
   x = 1,467,108.01