Finding the Fourth Proportional to 1,581,081.57, 2,181,893.31 and 855,929.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,081.57 : 2,181,893.31 = 855,929.30 : x
2. Step 2: Convert to fraction form
   1,581,081.57/2,181,893.31 = 855,929.30/x
3. Step 3: Cross multiply
   1,581,081.57x = 2,181,893.31 × 855,929.30
4. Step 4: Simplify right side
   1,581,081.57x = 1,867,546,402,593.52
5. Step 5: Solve for x
   x = 1,867,546,402,593.52/1,581,081.57
6. Step 6: Final answer
   x = 1,181,182.83