Finding the Fourth Proportional to 849,665.06, 1,274,123.64 and 450,213.78

Step by Step Solution

1. Step 1: Write the proportion equation
   849,665.06 : 1,274,123.64 = 450,213.78 : x
2. Step 2: Convert to fraction form
   849,665.06/1,274,123.64 = 450,213.78/x
3. Step 3: Cross multiply
   849,665.06x = 1,274,123.64 × 450,213.78
4. Step 4: Simplify right side
   849,665.06x = 573,628,020,151.76
5. Step 5: Solve for x
   x = 573,628,020,151.76/849,665.06
6. Step 6: Final answer
   x = 675,122.52