Finding the Fourth Proportional to 1,581,057.50, 2,181,858.86 and 855,904.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,057.50 : 2,181,858.86 = 855,904.69 : x
2. Step 2: Convert to fraction form
   1,581,057.50/2,181,858.86 = 855,904.69/x
3. Step 3: Cross multiply
   1,581,057.50x = 2,181,858.86 × 855,904.69
4. Step 4: Simplify right side
   1,581,057.50x = 1,867,463,236,059.14
5. Step 5: Solve for x
   x = 1,867,463,236,059.14/1,581,057.50
6. Step 6: Final answer
   x = 1,181,148.21