Finding the Fourth Proportional to 866,825.82, 1,196,154.72 and 484,778.79

Step by Step Solution

1. Step 1: Write the proportion equation
   866,825.82 : 1,196,154.72 = 484,778.79 : x
2. Step 2: Convert to fraction form
   866,825.82/1,196,154.72 = 484,778.79/x
3. Step 3: Cross multiply
   866,825.82x = 1,196,154.72 × 484,778.79
4. Step 4: Simplify right side
   866,825.82x = 579,870,437,814.39
5. Step 5: Solve for x
   x = 579,870,437,814.39/866,825.82
6. Step 6: Final answer
   x = 668,958.43