Finding the Fourth Proportional to 544,870.17, 817,296.98 and 245,139.05

Step by Step Solution

1. Step 1: Write the proportion equation
   544,870.17 : 817,296.98 = 245,139.05 : x
2. Step 2: Convert to fraction form
   544,870.17/817,296.98 = 245,139.05/x
3. Step 3: Cross multiply
   544,870.17x = 817,296.98 × 245,139.05
4. Step 4: Simplify right side
   544,870.17x = 200,351,399,932.89
5. Step 5: Solve for x
   x = 200,351,399,932.89/544,870.17
6. Step 6: Final answer
   x = 367,704.84