Finding the Fourth Proportional to 3,146.50, 4,719.42 and 1,066.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,146.50 : 4,719.42 = 1,066.45 : x
2. Step 2: Convert to fraction form
   3,146.50/4,719.42 = 1,066.45/x
3. Step 3: Cross multiply
   3,146.50x = 4,719.42 × 1,066.45
4. Step 4: Simplify right side
   3,146.50x = 5,032,997.86
5. Step 5: Solve for x
   x = 5,032,997.86/3,146.50
6. Step 6: Final answer
   x = 1,599.56