Finding the Fourth Proportional to 1,182,481.42, 1,631,823.96 and 638,617.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182,481.42 : 1,631,823.96 = 638,617.33 : x
2. Step 2: Convert to fraction form
   1,182,481.42/1,631,823.96 = 638,617.33/x
3. Step 3: Cross multiply
   1,182,481.42x = 1,631,823.96 × 638,617.33
4. Step 4: Simplify right side
   1,182,481.42x = 1,042,111,049,013.02
5. Step 5: Solve for x
   x = 1,042,111,049,013.02/1,182,481.42
6. Step 6: Final answer
   x = 881,291.69