Finding the Fourth Proportional to 1,182,760.43, 1,632,208.37 and 638,896.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182,760.43 : 1,632,208.37 = 638,896.05 : x
2. Step 2: Convert to fraction form
   1,182,760.43/1,632,208.37 = 638,896.05/x
3. Step 3: Cross multiply
   1,182,760.43x = 1,632,208.37 × 638,896.05
4. Step 4: Simplify right side
   1,182,760.43x = 1,042,811,477,175.46
5. Step 5: Solve for x
   x = 1,042,811,477,175.46/1,182,760.43
6. Step 6: Final answer
   x = 881,676.00