Finding the Fourth Proportional to 2,180,109.80, 3,272,108.70 and 1,280,426.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180,109.80 : 3,272,108.70 = 1,280,426.60 : x
2. Step 2: Convert to fraction form
   2,180,109.80/3,272,108.70 = 1,280,426.60/x
3. Step 3: Cross multiply
   2,180,109.80x = 3,272,108.70 × 1,280,426.60
4. Step 4: Simplify right side
   2,180,109.80x = 4,189,695,017,571.42
5. Step 5: Solve for x
   x = 4,189,695,017,571.42/2,180,109.80
6. Step 6: Final answer
   x = 1,921,781.65