Finding the Fourth Proportional to 3,333.56, 5,001.78 and 1,142.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,333.56 : 5,001.78 = 1,142.60 : x
2. Step 2: Convert to fraction form
   3,333.56/5,001.78 = 1,142.60/x
3. Step 3: Cross multiply
   3,333.56x = 5,001.78 × 1,142.60
4. Step 4: Simplify right side
   3,333.56x = 5,715,033.83
5. Step 5: Solve for x
   x = 5,715,033.83/3,333.56
6. Step 6: Final answer
   x = 1,714.39