Finding the Fourth Proportional to 1,168,081.72, 1,752,136.62 and 458,443.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168,081.72 : 1,752,136.62 = 458,443.96 : x
2. Step 2: Convert to fraction form
   1,168,081.72/1,752,136.62 = 458,443.96/x
3. Step 3: Cross multiply
   1,168,081.72x = 1,752,136.62 × 458,443.96
4. Step 4: Simplify right side
   1,168,081.72x = 803,256,450,533.82
5. Step 5: Solve for x
   x = 803,256,450,533.82/1,168,081.72
6. Step 6: Final answer
   x = 687,671.45