Finding the Fourth Proportional to 1,456,176.42, 2,185,248.78 and 509,555.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,176.42 : 2,185,248.78 = 509,555.34 : x
2. Step 2: Convert to fraction form
   1,456,176.42/2,185,248.78 = 509,555.34/x
3. Step 3: Cross multiply
   1,456,176.42x = 2,185,248.78 × 509,555.34
4. Step 4: Simplify right side
   1,456,176.42x = 1,113,505,185,077.49
5. Step 5: Solve for x
   x = 1,113,505,185,077.49/1,456,176.42
6. Step 6: Final answer
   x = 764,677.39