Finding the Fourth Proportional to 1,405,076.56, 1,939,052.58 and 861,107.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,076.56 : 1,939,052.58 = 861,107.32 : x
2. Step 2: Convert to fraction form
   1,405,076.56/1,939,052.58 = 861,107.32/x
3. Step 3: Cross multiply
   1,405,076.56x = 1,939,052.58 × 861,107.32
4. Step 4: Simplify right side
   1,405,076.56x = 1,669,732,370,502.89
5. Step 5: Solve for x
   x = 1,669,732,370,502.89/1,405,076.56
6. Step 6: Final answer
   x = 1,188,356.86