Finding the Fourth Proportional to 1,168,086.72, 1,752,144.12 and 458,448.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168,086.72 : 1,752,144.12 = 458,448.96 : x
2. Step 2: Convert to fraction form
   1,168,086.72/1,752,144.12 = 458,448.96/x
3. Step 3: Cross multiply
   1,168,086.72x = 1,752,144.12 × 458,448.96
4. Step 4: Simplify right side
   1,168,086.72x = 803,268,649,584.12
5. Step 5: Solve for x
   x = 803,268,649,584.12/1,168,086.72
6. Step 6: Final answer
   x = 687,678.95