Finding the Fourth Proportional to 745,258, 1,028,715.24 and 443,445.52

Step by Step Solution

1. Step 1: Write the proportion equation
   745,258 : 1,028,715.24 = 443,445.52 : x
2. Step 2: Convert to fraction form
   745,258/1,028,715.24 = 443,445.52/x
3. Step 3: Cross multiply
   745,258x = 1,028,715.24 × 443,445.52
4. Step 4: Simplify right side
   745,258x = 456,179,164,533.73
5. Step 5: Solve for x
   x = 456,179,164,533.73/745,258
6. Step 6: Final answer
   x = 612,109.05