Finding the Fourth Proportional to 3,146.50, 4,720.43 and 1,066.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,146.50 : 4,720.43 = 1,066.56 : x
2. Step 2: Convert to fraction form
   3,146.50/4,720.43 = 1,066.56/x
3. Step 3: Cross multiply
   3,146.50x = 4,720.43 × 1,066.56
4. Step 4: Simplify right side
   3,146.50x = 5,034,621.82
5. Step 5: Solve for x
   x = 5,034,621.82/3,146.50
6. Step 6: Final answer
   x = 1,600.07