Finding the Fourth Proportional to 2,060,916.31, 3,091,382.37 and 861,997.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060,916.31 : 3,091,382.37 = 861,997.60 : x
2. Step 2: Convert to fraction form
   2,060,916.31/3,091,382.37 = 861,997.60/x
3. Step 3: Cross multiply
   2,060,916.31x = 3,091,382.37 × 861,997.60
4. Step 4: Simplify right side
   2,060,916.31x = 2,664,764,183,622.31
5. Step 5: Solve for x
   x = 2,664,764,183,622.31/2,060,916.31
6. Step 6: Final answer
   x = 1,292,999.71