Finding the Fourth Proportional to 868,597.98, 1,302,576.72 and 299,834.34

Step by Step Solution

1. Step 1: Write the proportion equation
   868,597.98 : 1,302,576.72 = 299,834.34 : x
2. Step 2: Convert to fraction form
   868,597.98/1,302,576.72 = 299,834.34/x
3. Step 3: Cross multiply
   868,597.98x = 1,302,576.72 × 299,834.34
4. Step 4: Simplify right side
   868,597.98x = 390,557,231,140.57
5. Step 5: Solve for x
   x = 390,557,231,140.57/868,597.98
6. Step 6: Final answer
   x = 449,640.96