Finding the Fourth Proportional to 1,082,615.10, 1,620,687.18 and 654,856.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082,615.10 : 1,620,687.18 = 654,856.39 : x
2. Step 2: Convert to fraction form
   1,082,615.10/1,620,687.18 = 654,856.39/x
3. Step 3: Cross multiply
   1,082,615.10x = 1,620,687.18 × 654,856.39
4. Step 4: Simplify right side
   1,082,615.10x = 1,061,317,356,014.08
5. Step 5: Solve for x
   x = 1,061,317,356,014.08/1,082,615.10
6. Step 6: Final answer
   x = 980,327.50