Finding the Fourth Proportional to 2,971.10, 4,456.71 and 1,123.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.10 : 4,456.71 = 1,123.09 : x
2. Step 2: Convert to fraction form
   2,971.10/4,456.71 = 1,123.09/x
3. Step 3: Cross multiply
   2,971.10x = 4,456.71 × 1,123.09
4. Step 4: Simplify right side
   2,971.10x = 5,005,275.29
5. Step 5: Solve for x
   x = 5,005,275.29/2,971.10
6. Step 6: Final answer
   x = 1,684.65