Finding the Fourth Proportional to 830,841.30, 1,146,560.72 and 448,868.08

Step by Step Solution

1. Step 1: Write the proportion equation
   830,841.30 : 1,146,560.72 = 448,868.08 : x
2. Step 2: Convert to fraction form
   830,841.30/1,146,560.72 = 448,868.08/x
3. Step 3: Cross multiply
   830,841.30x = 1,146,560.72 × 448,868.08
4. Step 4: Simplify right side
   830,841.30x = 514,654,510,703.56
5. Step 5: Solve for x
   x = 514,654,510,703.56/830,841.30
6. Step 6: Final answer
   x = 619,437.80