Finding the Fourth Proportional to 2,581.73, 3,562.78 and 1,402.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.73 : 3,562.78 = 1,402.79 : x
2. Step 2: Convert to fraction form
   2,581.73/3,562.78 = 1,402.79/x
3. Step 3: Cross multiply
   2,581.73x = 3,562.78 × 1,402.79
4. Step 4: Simplify right side
   2,581.73x = 4,997,832.16
5. Step 5: Solve for x
   x = 4,997,832.16/2,581.73
6. Step 6: Final answer
   x = 1,935.85