Finding the Fourth Proportional to 2,645,016.90, 3,968,108.55 and 847,983.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,016.90 : 3,968,108.55 = 847,983.30 : x
2. Step 2: Convert to fraction form
   2,645,016.90/3,968,108.55 = 847,983.30/x
3. Step 3: Cross multiply
   2,645,016.90x = 3,968,108.55 × 847,983.30
4. Step 4: Simplify right side
   2,645,016.90x = 3,364,889,782,987.22
5. Step 5: Solve for x
   x = 3,364,889,782,987.22/2,645,016.90
6. Step 6: Final answer
   x = 1,272,161.92