Finding the Fourth Proportional to 3,192.89, 4,790.01 and 971.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,192.89 : 4,790.01 = 971.79 : x
2. Step 2: Convert to fraction form
   3,192.89/4,790.01 = 971.79/x
3. Step 3: Cross multiply
   3,192.89x = 4,790.01 × 971.79
4. Step 4: Simplify right side
   3,192.89x = 4,654,883.82
5. Step 5: Solve for x
   x = 4,654,883.82/3,192.89
6. Step 6: Final answer
   x = 1,457.89