Finding the Fourth Proportional to 830,662.97, 1,146,314.72 and 448,689.75

Step by Step Solution

1. Step 1: Write the proportion equation
   830,662.97 : 1,146,314.72 = 448,689.75 : x
2. Step 2: Convert to fraction form
   830,662.97/1,146,314.72 = 448,689.75/x
3. Step 3: Cross multiply
   830,662.97x = 1,146,314.72 × 448,689.75
4. Step 4: Simplify right side
   830,662.97x = 514,339,662,894.67
5. Step 5: Solve for x
   x = 514,339,662,894.67/830,662.97
6. Step 6: Final answer
   x = 619,191.76