Finding the Fourth Proportional to 907,968.83, 1,361,949.59 and 276,880.82

Step by Step Solution

1. Step 1: Write the proportion equation
   907,968.83 : 1,361,949.59 = 276,880.82 : x
2. Step 2: Convert to fraction form
   907,968.83/1,361,949.59 = 276,880.82/x
3. Step 3: Cross multiply
   907,968.83x = 1,361,949.59 × 276,880.82
4. Step 4: Simplify right side
   907,968.83x = 377,097,713,160.32
5. Step 5: Solve for x
   x = 377,097,713,160.32/907,968.83
6. Step 6: Final answer
   x = 415,320.11