Finding the Fourth Proportional to 1,456,103.42, 2,185,139.28 and 509,482.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,103.42 : 2,185,139.28 = 509,482.34 : x
2. Step 2: Convert to fraction form
   1,456,103.42/2,185,139.28 = 509,482.34/x
3. Step 3: Cross multiply
   1,456,103.42x = 2,185,139.28 × 509,482.34
4. Step 4: Simplify right side
   1,456,103.42x = 1,113,289,873,600.32
5. Step 5: Solve for x
   x = 1,113,289,873,600.32/1,456,103.42
6. Step 6: Final answer
   x = 764,567.86