Finding the Fourth Proportional to 2,072,829.29, 2,861,120.27 and 1,309,391.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072,829.29 : 2,861,120.27 = 1,309,391.33 : x
2. Step 2: Convert to fraction form
   2,072,829.29/2,861,120.27 = 1,309,391.33/x
3. Step 3: Cross multiply
   2,072,829.29x = 2,861,120.27 × 1,309,391.33
4. Step 4: Simplify right side
   2,072,829.29x = 3,746,326,064,593.14
5. Step 5: Solve for x
   x = 3,746,326,064,593.14/2,072,829.29
6. Step 6: Final answer
   x = 1,807,349.06