Finding the Fourth Proportional to 3,333.57, 5,001.12 and 1,142.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,333.57 : 5,001.12 = 1,142.30 : x
2. Step 2: Convert to fraction form
   3,333.57/5,001.12 = 1,142.30/x
3. Step 3: Cross multiply
   3,333.57x = 5,001.12 × 1,142.30
4. Step 4: Simplify right side
   3,333.57x = 5,712,754.37
5. Step 5: Solve for x
   x = 5,712,754.37/3,333.57
6. Step 6: Final answer
   x = 1,713.70