Finding the Fourth Proportional to 2,057.89, 2,840.51 and 1,781.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.89 : 2,840.51 = 1,781.10 : x
2. Step 2: Convert to fraction form
   2,057.89/2,840.51 = 1,781.10/x
3. Step 3: Cross multiply
   2,057.89x = 2,840.51 × 1,781.10
4. Step 4: Simplify right side
   2,057.89x = 5,059,232.36
5. Step 5: Solve for x
   x = 5,059,232.36/2,057.89
6. Step 6: Final answer
   x = 2,458.46