Finding the Fourth Proportional to 1,405,062.06, 1,939,032.59 and 861,092.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,062.06 : 1,939,032.59 = 861,092.76 : x
2. Step 2: Convert to fraction form
   1,405,062.06/1,939,032.59 = 861,092.76/x
3. Step 3: Cross multiply
   1,405,062.06x = 1,939,032.59 × 861,092.76
4. Step 4: Simplify right side
   1,405,062.06x = 1,669,686,920,347.58
5. Step 5: Solve for x
   x = 1,669,686,920,347.58/1,405,062.06
6. Step 6: Final answer
   x = 1,188,336.78