Finding the Fourth Proportional to 2,309,262.55, 3,186,727.27 and 1,290,762.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,262.55 : 3,186,727.27 = 1,290,762.07 : x
2. Step 2: Convert to fraction form
   2,309,262.55/3,186,727.27 = 1,290,762.07/x
3. Step 3: Cross multiply
   2,309,262.55x = 3,186,727.27 × 1,290,762.07
4. Step 4: Simplify right side
   2,309,262.55x = 4,113,306,676,356.93
5. Step 5: Solve for x
   x = 4,113,306,676,356.93/2,309,262.55
6. Step 6: Final answer
   x = 1,781,220.88