Finding the Fourth Proportional to 1,241.79, 1,861.61 and 472.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,241.79 : 1,861.61 = 472.83 : x
2. Step 2: Convert to fraction form
   1,241.79/1,861.61 = 472.83/x
3. Step 3: Cross multiply
   1,241.79x = 1,861.61 × 472.83
4. Step 4: Simplify right side
   1,241.79x = 880,222.69
5. Step 5: Solve for x
   x = 880,222.69/1,241.79
6. Step 6: Final answer
   x = 708.83