Finding the Fourth Proportional to 1,456,109.67, 2,185,148.66 and 509,488.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,109.67 : 2,185,148.66 = 509,488.59 : x
2. Step 2: Convert to fraction form
   1,456,109.67/2,185,148.66 = 509,488.59/x
3. Step 3: Cross multiply
   1,456,109.67x = 2,185,148.66 × 509,488.59
4. Step 4: Simplify right side
   1,456,109.67x = 1,113,308,307,176.35
5. Step 5: Solve for x
   x = 1,113,308,307,176.35/1,456,109.67
6. Step 6: Final answer
   x = 764,577.24