Finding the Fourth Proportional to 2,057.40, 3,087.72 and 1,837.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.40 : 3,087.72 = 1,837.08 : x
2. Step 2: Convert to fraction form
   2,057.40/3,087.72 = 1,837.08/x
3. Step 3: Cross multiply
   2,057.40x = 3,087.72 × 1,837.08
4. Step 4: Simplify right side
   2,057.40x = 5,672,388.66
5. Step 5: Solve for x
   x = 5,672,388.66/2,057.40
6. Step 6: Final answer
   x = 2,757.07