Finding the Fourth Proportional to 2,070.65, 3,105.96 and 974.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.65 : 3,105.96 = 974.42 : x
2. Step 2: Convert to fraction form
   2,070.65/3,105.96 = 974.42/x
3. Step 3: Cross multiply
   2,070.65x = 3,105.96 × 974.42
4. Step 4: Simplify right side
   2,070.65x = 3,026,509.54
5. Step 5: Solve for x
   x = 3,026,509.54/2,070.65
6. Step 6: Final answer
   x = 1,461.62