Finding the Fourth Proportional to 2,309,169.06, 3,186,645.31 and 1,290,573.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,169.06 : 3,186,645.31 = 1,290,573.81 : x
2. Step 2: Convert to fraction form
   2,309,169.06/3,186,645.31 = 1,290,573.81/x
3. Step 3: Cross multiply
   2,309,169.06x = 3,186,645.31 × 1,290,573.81
4. Step 4: Simplify right side
   2,309,169.06x = 4,112,600,978,845.33
5. Step 5: Solve for x
   x = 4,112,600,978,845.33/2,309,169.06
6. Step 6: Final answer
   x = 1,780,987.39