Finding the Fourth Proportional to 2,605,987.37, 3,909,472.12 and 987,241.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,987.37 : 3,909,472.12 = 987,241.05 : x
2. Step 2: Convert to fraction form
   2,605,987.37/3,909,472.12 = 987,241.05/x
3. Step 3: Cross multiply
   2,605,987.37x = 3,909,472.12 × 987,241.05
4. Step 4: Simplify right side
   2,605,987.37x = 3,859,591,360,694.53
5. Step 5: Solve for x
   x = 3,859,591,360,694.53/2,605,987.37
6. Step 6: Final answer
   x = 1,481,047.61