Finding the Fourth Proportional to 1,081,103.76, 1,492,071.57 and 622,209.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081,103.76 : 1,492,071.57 = 622,209.06 : x
2. Step 2: Convert to fraction form
   1,081,103.76/1,492,071.57 = 622,209.06/x
3. Step 3: Cross multiply
   1,081,103.76x = 1,492,071.57 × 622,209.06
4. Step 4: Simplify right side
   1,081,103.76x = 928,380,449,022.42
5. Step 5: Solve for x
   x = 928,380,449,022.42/1,081,103.76
6. Step 6: Final answer
   x = 858,733.90