Finding the Fourth Proportional to 2,057.60, 2,839.46 and 1,113.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.60 : 2,839.46 = 1,113.37 : x
2. Step 2: Convert to fraction form
   2,057.60/2,839.46 = 1,113.37/x
3. Step 3: Cross multiply
   2,057.60x = 2,839.46 × 1,113.37
4. Step 4: Simplify right side
   2,057.60x = 3,161,366.66
5. Step 5: Solve for x
   x = 3,161,366.66/2,057.60
6. Step 6: Final answer
   x = 1,536.44