Finding the Fourth Proportional to 2,309,559.72, 3,186,914.22 and 1,276,928

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,559.72 : 3,186,914.22 = 1,276,928 : x
2. Step 2: Convert to fraction form
   2,309,559.72/3,186,914.22 = 1,276,928/x
3. Step 3: Cross multiply
   2,309,559.72x = 3,186,914.22 × 1,276,928
4. Step 4: Simplify right side
   2,309,559.72x = 4,069,460,001,116.16
5. Step 5: Solve for x
   x = 4,069,460,001,116.16/2,309,559.72
6. Step 6: Final answer
   x = 1,762,006.83