Finding the Fourth Proportional to 830,667.56, 1,146,321.69 and 448,694.34

Step by Step Solution

1. Step 1: Write the proportion equation
   830,667.56 : 1,146,321.69 = 448,694.34 : x
2. Step 2: Convert to fraction form
   830,667.56/1,146,321.69 = 448,694.34/x
3. Step 3: Cross multiply
   830,667.56x = 1,146,321.69 × 448,694.34
4. Step 4: Simplify right side
   830,667.56x = 514,348,060,103.55
5. Step 5: Solve for x
   x = 514,348,060,103.55/830,667.56
6. Step 6: Final answer
   x = 619,198.44