Finding the Fourth Proportional to 830,748.52, 1,146,433.98 and 448,775.30

Step by Step Solution

1. Step 1: Write the proportion equation
   830,748.52 : 1,146,433.98 = 448,775.30 : x
2. Step 2: Convert to fraction form
   830,748.52/1,146,433.98 = 448,775.30/x
3. Step 3: Cross multiply
   830,748.52x = 1,146,433.98 × 448,775.30
4. Step 4: Simplify right side
   830,748.52x = 514,491,256,591.51
5. Step 5: Solve for x
   x = 514,491,256,591.51/830,748.52
6. Step 6: Final answer
   x = 619,310.47