Finding the Fourth Proportional to 1,405,067.31, 1,939,039.83 and 861,098.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,067.31 : 1,939,039.83 = 861,098.00 : x
2. Step 2: Convert to fraction form
   1,405,067.31/1,939,039.83 = 861,098.00/x
3. Step 3: Cross multiply
   1,405,067.31x = 1,939,039.83 × 861,098.00
4. Step 4: Simplify right side
   1,405,067.31x = 1,669,703,309,838.14
5. Step 5: Solve for x
   x = 1,669,703,309,838.14/1,405,067.31
6. Step 6: Final answer
   x = 1,188,344.00