Finding the Fourth Proportional to 2,920.72, 4,030.81 and 1,662.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.72 : 4,030.81 = 1,662.18 : x
2. Step 2: Convert to fraction form
   2,920.72/4,030.81 = 1,662.18/x
3. Step 3: Cross multiply
   2,920.72x = 4,030.81 × 1,662.18
4. Step 4: Simplify right side
   2,920.72x = 6,699,931.77
5. Step 5: Solve for x
   x = 6,699,931.77/2,920.72
6. Step 6: Final answer
   x = 2,293.93