Finding the Fourth Proportional to 2,581.78, 3,562.82 and 1,402.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.78 : 3,562.82 = 1,402.84 : x
2. Step 2: Convert to fraction form
   2,581.78/3,562.82 = 1,402.84/x
3. Step 3: Cross multiply
   2,581.78x = 3,562.82 × 1,402.84
4. Step 4: Simplify right side
   2,581.78x = 4,998,066.41
5. Step 5: Solve for x
   x = 4,998,066.41/2,581.78
6. Step 6: Final answer
   x = 1,935.90