Finding the Fourth Proportional to 1,105,150.13, 1,524,548.91 and 645,964.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,150.13 : 1,524,548.91 = 645,964.71 : x
2. Step 2: Convert to fraction form
   1,105,150.13/1,524,548.91 = 645,964.71/x
3. Step 3: Cross multiply
   1,105,150.13x = 1,524,548.91 × 645,964.71
4. Step 4: Simplify right side
   1,105,150.13x = 984,804,786,906.22
5. Step 5: Solve for x
   x = 984,804,786,906.22/1,105,150.13
6. Step 6: Final answer
   x = 891,104.99