Finding the Fourth Proportional to 866,973.30, 1,300,137.18 and 298,194.72

Step by Step Solution

1. Step 1: Write the proportion equation
   866,973.30 : 1,300,137.18 = 298,194.72 : x
2. Step 2: Convert to fraction form
   866,973.30/1,300,137.18 = 298,194.72/x
3. Step 3: Cross multiply
   866,973.30x = 1,300,137.18 × 298,194.72
4. Step 4: Simplify right side
   866,973.30x = 387,694,042,351.69
5. Step 5: Solve for x
   x = 387,694,042,351.69/866,973.30
6. Step 6: Final answer
   x = 447,181.06