Finding the Fourth Proportional to 1,116,766.56, 1,674,182.16 and 451,486.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,766.56 : 1,674,182.16 = 451,486.56 : x
2. Step 2: Convert to fraction form
   1,116,766.56/1,674,182.16 = 451,486.56/x
3. Step 3: Cross multiply
   1,116,766.56x = 1,674,182.16 × 451,486.56
4. Step 4: Simplify right side
   1,116,766.56x = 755,870,744,231.77
5. Step 5: Solve for x
   x = 755,870,744,231.77/1,116,766.56
6. Step 6: Final answer
   x = 676,838.63