Finding the Fourth Proportional to 791,196.72, 1,186,944.84 and 317,919.12

Step by Step Solution

1. Step 1: Write the proportion equation
   791,196.72 : 1,186,944.84 = 317,919.12 : x
2. Step 2: Convert to fraction form
   791,196.72/1,186,944.84 = 317,919.12/x
3. Step 3: Cross multiply
   791,196.72x = 1,186,944.84 × 317,919.12
4. Step 4: Simplify right side
   791,196.72x = 377,352,459,021.34
5. Step 5: Solve for x
   x = 377,352,459,021.34/791,196.72
6. Step 6: Final answer
   x = 476,938.86