Finding the Fourth Proportional to 2,636,801.88, 3,955,581.63 and 815,308.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636,801.88 : 3,955,581.63 = 815,308.62 : x
2. Step 2: Convert to fraction form
   2,636,801.88/3,955,581.63 = 815,308.62/x
3. Step 3: Cross multiply
   2,636,801.88x = 3,955,581.63 × 815,308.62
4. Step 4: Simplify right side
   2,636,801.88x = 3,225,019,800,052.65
5. Step 5: Solve for x
   x = 3,225,019,800,052.65/2,636,801.88
6. Step 6: Final answer
   x = 1,223,080.06