Finding the Fourth Proportional to 3,546.72, 5,318.28 and 2,066.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.72 : 5,318.28 = 2,066.43 : x
2. Step 2: Convert to fraction form
   3,546.72/5,318.28 = 2,066.43/x
3. Step 3: Cross multiply
   3,546.72x = 5,318.28 × 2,066.43
4. Step 4: Simplify right side
   3,546.72x = 10,989,853.34
5. Step 5: Solve for x
   x = 10,989,853.34/3,546.72
6. Step 6: Final answer
   x = 3,098.60