Finding the Fourth Proportional to 2,642,984.50, 3,647,009.16 and 1,555,016.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642,984.50 : 3,647,009.16 = 1,555,016.80 : x
2. Step 2: Convert to fraction form
   2,642,984.50/3,647,009.16 = 1,555,016.80/x
3. Step 3: Cross multiply
   2,642,984.50x = 3,647,009.16 × 1,555,016.80
4. Step 4: Simplify right side
   2,642,984.50x = 5,671,160,513,553.89
5. Step 5: Solve for x
   x = 5,671,160,513,553.89/2,642,984.50
6. Step 6: Final answer
   x = 2,145,741.12