Finding the Fourth Proportional to 2,488,086.61, 3,728,973.97 and 1,120,401.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488,086.61 : 3,728,973.97 = 1,120,401.05 : x
2. Step 2: Convert to fraction form
   2,488,086.61/3,728,973.97 = 1,120,401.05/x
3. Step 3: Cross multiply
   2,488,086.61x = 3,728,973.97 × 1,120,401.05
4. Step 4: Simplify right side
   2,488,086.61x = 4,177,946,348,149.95
5. Step 5: Solve for x
   x = 4,177,946,348,149.95/2,488,086.61
6. Step 6: Final answer
   x = 1,679,180.43