Finding the Fourth Proportional to 1,081,600.72, 1,492,443.18 and 622,626.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081,600.72 : 1,492,443.18 = 622,626.60 : x
2. Step 2: Convert to fraction form
   1,081,600.72/1,492,443.18 = 622,626.60/x
3. Step 3: Cross multiply
   1,081,600.72x = 1,492,443.18 × 622,626.60
4. Step 4: Simplify right side
   1,081,600.72x = 929,234,822,856.59
5. Step 5: Solve for x
   x = 929,234,822,856.59/1,081,600.72
6. Step 6: Final answer
   x = 859,129.26