Finding the Fourth Proportional to 3,335.31, 5,003.42 and 1,143.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,335.31 : 5,003.42 = 1,143.75 : x
2. Step 2: Convert to fraction form
   3,335.31/5,003.42 = 1,143.75/x
3. Step 3: Cross multiply
   3,335.31x = 5,003.42 × 1,143.75
4. Step 4: Simplify right side
   3,335.31x = 5,722,655.91
5. Step 5: Solve for x
   x = 5,722,655.91/3,335.31
6. Step 6: Final answer
   x = 1,715.78