Finding the Fourth Proportional to 2,642,971.50, 3,646,991.25 and 1,555,003.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642,971.50 : 3,646,991.25 = 1,555,003.80 : x
2. Step 2: Convert to fraction form
   2,642,971.50/3,646,991.25 = 1,555,003.80/x
3. Step 3: Cross multiply
   2,642,971.50x = 3,646,991.25 × 1,555,003.80
4. Step 4: Simplify right side
   2,642,971.50x = 5,671,085,252,316.75
5. Step 5: Solve for x
   x = 5,671,085,252,316.75/2,642,971.50
6. Step 6: Final answer
   x = 2,145,723.20