Finding the Fourth Proportional to 779,007.48, 1,168,662.72 and 299,200.16

Step by Step Solution

1. Step 1: Write the proportion equation
   779,007.48 : 1,168,662.72 = 299,200.16 : x
2. Step 2: Convert to fraction form
   779,007.48/1,168,662.72 = 299,200.16/x
3. Step 3: Cross multiply
   779,007.48x = 1,168,662.72 × 299,200.16
4. Step 4: Simplify right side
   779,007.48x = 349,664,072,810.04
5. Step 5: Solve for x
   x = 349,664,072,810.04/779,007.48
6. Step 6: Final answer
   x = 448,858.43