Finding the Fourth Proportional to 2,082.18, 2,872.27 and 1,335.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.18 : 2,872.27 = 1,335.31 : x
2. Step 2: Convert to fraction form
   2,082.18/2,872.27 = 1,335.31/x
3. Step 3: Cross multiply
   2,082.18x = 2,872.27 × 1,335.31
4. Step 4: Simplify right side
   2,082.18x = 3,835,349.82
5. Step 5: Solve for x
   x = 3,835,349.82/2,082.18
6. Step 6: Final answer
   x = 1,841.99