Finding the Fourth Proportional to 866,775.83, 1,196,185.89 and 479,584.96

Step by Step Solution

1. Step 1: Write the proportion equation
   866,775.83 : 1,196,185.89 = 479,584.96 : x
2. Step 2: Convert to fraction form
   866,775.83/1,196,185.89 = 479,584.96/x
3. Step 3: Cross multiply
   866,775.83x = 1,196,185.89 × 479,584.96
4. Step 4: Simplify right side
   866,775.83x = 573,672,756,227.29
5. Step 5: Solve for x
   x = 573,672,756,227.29/866,775.83
6. Step 6: Final answer
   x = 661,846.74