Finding the Fourth Proportional to 2,642,914.91, 3,960,336.89 and 1,965,721.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642,914.91 : 3,960,336.89 = 1,965,721.29 : x
2. Step 2: Convert to fraction form
   2,642,914.91/3,960,336.89 = 1,965,721.29/x
3. Step 3: Cross multiply
   2,642,914.91x = 3,960,336.89 × 1,965,721.29
4. Step 4: Simplify right side
   2,642,914.91x = 7,784,918,545,159.69
5. Step 5: Solve for x
   x = 7,784,918,545,159.69/2,642,914.91
6. Step 6: Final answer
   x = 2,945,580.48