Finding the Fourth Proportional to 830,758.94, 1,146,445.89 and 448,784.54

Step by Step Solution

1. Step 1: Write the proportion equation
   830,758.94 : 1,146,445.89 = 448,784.54 : x
2. Step 2: Convert to fraction form
   830,758.94/1,146,445.89 = 448,784.54/x
3. Step 3: Cross multiply
   830,758.94x = 1,146,445.89 × 448,784.54
4. Step 4: Simplify right side
   830,758.94x = 514,507,191,378.54
5. Step 5: Solve for x
   x = 514,507,191,378.54/830,758.94
6. Step 6: Final answer
   x = 619,321.88